diff --git a/arch/arm/mach-at91/at91sam926x_time.c b/arch/arm/mach-at91/at91sam926x_time.c index 644dc34..06d3e32 100644 --- a/arch/arm/mach-at91/at91sam926x_time.c +++ b/arch/arm/mach-at91/at91sam926x_time.c @@ -90,6 +90,8 @@ } pit_base = dev_request_mem_region(dev, 0); + if (IS_ERR(pit_base)) + return PTR_ERR(pit_base); pit_rate = clk_get_rate(clk) / 16; diff --git a/arch/arm/mach-at91/sam9_smc.c b/arch/arm/mach-at91/sam9_smc.c index 9f02807..403fa9b 100644 --- a/arch/arm/mach-at91/sam9_smc.c +++ b/arch/arm/mach-at91/sam9_smc.c @@ -14,6 +14,7 @@ #include #include #include +#include #include @@ -164,9 +165,9 @@ } smc_base_addr[id] = dev_request_mem_region(dev, 0); - if (!smc_base_addr[id]) { + if (IS_ERR(smc_base_addr[id])) { dev_err(dev, "Impossible to request smc.%d\n", id); - return -ENOMEM; + return PTR_ERR(smc_base_addr[id]); } return 0; diff --git a/arch/arm/mach-imx/clk-imx1.c b/arch/arm/mach-imx/clk-imx1.c index 6fcd6fa..bb1318f 100644 --- a/arch/arm/mach-imx/clk-imx1.c +++ b/arch/arm/mach-imx/clk-imx1.c @@ -90,6 +90,8 @@ void __iomem *regs; regs = dev_request_mem_region(dev, 0); + if (IS_ERR(regs)) + return PTR_ERR(regs); mx1_clocks_init(regs, 32000); diff --git a/arch/arm/mach-imx/clk-imx21.c b/arch/arm/mach-imx/clk-imx21.c index be9c466..b48bb8c 100644 --- a/arch/arm/mach-imx/clk-imx21.c +++ b/arch/arm/mach-imx/clk-imx21.c @@ -112,6 +112,8 @@ unsigned long href = 26000000; base = dev_request_mem_region(dev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); writel(PCCR0_UART1_EN | PCCR0_UART2_EN | PCCR0_UART3_EN | PCCR0_UART4_EN | PCCR0_CSPI1_EN | PCCR0_CSPI2_EN | PCCR0_SDHC1_EN | diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c index 1114ad2..7d10078 100644 --- a/arch/arm/mach-imx/clk-imx25.c +++ b/arch/arm/mach-imx/clk-imx25.c @@ -88,6 +88,8 @@ void __iomem *base; base = dev_request_mem_region(dev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); writel((1 << 3) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 8) | (1 << 9) | (1 << 10) | (1 << 15) | (1 << 19) | (1 << 21) | (1 << 22) | diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c index 2423627..bd1753a 100644 --- a/arch/arm/mach-imx/clk-imx27.c +++ b/arch/arm/mach-imx/clk-imx27.c @@ -159,6 +159,8 @@ void __iomem *base; base = dev_request_mem_region(dev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); writel(PCCR0_SDHC3_EN | PCCR0_SDHC2_EN | PCCR0_SDHC1_EN | PCCR0_PWM_EN | PCCR0_KPP_EN | PCCR0_IIM_EN | diff --git a/arch/arm/mach-imx/clk-imx31.c b/arch/arm/mach-imx/clk-imx31.c index 4935595..eb9bb09 100644 --- a/arch/arm/mach-imx/clk-imx31.c +++ b/arch/arm/mach-imx/clk-imx31.c @@ -83,6 +83,8 @@ void __iomem *base; base = dev_request_mem_region(dev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); writel(0xffffffff, base + CCM_CGR0); writel(0xffffffff, base + CCM_CGR1); diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c index 6ea4577..dde2339 100644 --- a/arch/arm/mach-imx/clk-imx35.c +++ b/arch/arm/mach-imx/clk-imx35.c @@ -96,6 +96,8 @@ void __iomem *base; base = dev_request_mem_region(dev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); writel(0xffffffff, base + CCM_CGR0); writel(0xffffffff, base + CCM_CGR1); diff --git a/arch/arm/mach-imx/clk-imx5.c b/arch/arm/mach-imx/clk-imx5.c index e46f4d2..2ae8d6a 100644 --- a/arch/arm/mach-imx/clk-imx5.c +++ b/arch/arm/mach-imx/clk-imx5.c @@ -311,6 +311,8 @@ void __iomem *regs; regs = dev_request_mem_region(dev, 0); + if (IS_ERR(regs)) + return PTR_ERR(regs); mx51_clocks_init(regs, 32768, 24000000, 22579200, 0); /* FIXME */ diff --git a/arch/arm/mach-imx/clk-imx6.c b/arch/arm/mach-imx/clk-imx6.c index 4598a62..c051876 100644 --- a/arch/arm/mach-imx/clk-imx6.c +++ b/arch/arm/mach-imx/clk-imx6.c @@ -328,6 +328,8 @@ anatop_base = (void *)MX6_ANATOP_BASE_ADDR; ccm_base = dev_request_mem_region(dev, 0); + if (IS_ERR(ccm_base)) + return PTR_ERR(ccm_base); base = anatop_base; diff --git a/arch/arm/mach-imx/clocksource.c b/arch/arm/mach-imx/clocksource.c index 9f5ca56..eba04a3 100644 --- a/arch/arm/mach-imx/clocksource.c +++ b/arch/arm/mach-imx/clocksource.c @@ -104,6 +104,8 @@ return ret; timer_base = dev_request_mem_region(dev, 0); + if (IS_ERR(timer_base)) + return PTR_ERR(timer_base); /* setup GP Timer 1 */ writel(TCTL_SWR, timer_base + GPT_TCTL); diff --git a/arch/arm/mach-imx/esdctl.c b/arch/arm/mach-imx/esdctl.c index 811592f..f0d2b5b 100644 --- a/arch/arm/mach-imx/esdctl.c +++ b/arch/arm/mach-imx/esdctl.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -297,8 +298,8 @@ return ret; base = dev_request_mem_region(dev, 0); - if (!base) - return -ENOMEM; + if (IS_ERR(base)) + return PTR_ERR(base); if (imx_esdctl_disabled) return 0; diff --git a/arch/arm/mach-imx/iim.c b/arch/arm/mach-imx/iim.c index 16ba678..2546b92 100644 --- a/arch/arm/mach-imx/iim.c +++ b/arch/arm/mach-imx/iim.c @@ -411,8 +411,8 @@ iim->fuse_supply = ERR_PTR(-ENODEV); iim->base = dev_request_mem_region(dev, 0); - if (!iim->base) - return -EBUSY; + if (IS_ERR(iim->base)) + return PTR_ERR(iim->base); for (i = 0; i < IIM_NUM_BANKS; i++) { ret = imx_iim_add_bank(iim, i); diff --git a/arch/arm/mach-imx/ocotp.c b/arch/arm/mach-imx/ocotp.c index 476b376..837500f 100644 --- a/arch/arm/mach-imx/ocotp.c +++ b/arch/arm/mach-imx/ocotp.c @@ -397,8 +397,8 @@ int ret = 0; base = dev_request_mem_region(dev, 0); - if (!base) - return -EBUSY; + if (IS_ERR(base)) + return PTR_ERR(base); imx_ocotp_init_dt(dev, base); diff --git a/arch/arm/mach-mxs/ocotp.c b/arch/arm/mach-mxs/ocotp.c index 59c3b8a..c7c24e0 100644 --- a/arch/arm/mach-mxs/ocotp.c +++ b/arch/arm/mach-mxs/ocotp.c @@ -183,6 +183,9 @@ struct ocotp_priv *priv = xzalloc(sizeof (*priv)); priv->base = dev_request_mem_region(dev, 0); + if (IS_ERR(priv->base)) + return PTR_ERR(priv->base); + priv->clk = clk_get(dev, NULL); if (IS_ERR(priv->clk)) return PTR_ERR(priv->clk); diff --git a/arch/arm/mach-tegra/tegra20-pmc.c b/arch/arm/mach-tegra/tegra20-pmc.c index 94167d6..d868094 100644 --- a/arch/arm/mach-tegra/tegra20-pmc.c +++ b/arch/arm/mach-tegra/tegra20-pmc.c @@ -23,6 +23,7 @@ #include #include #include +#include #include @@ -40,9 +41,9 @@ static int tegra20_pmc_probe(struct device_d *dev) { pmc_base = dev_request_mem_region(dev, 0); - if (!pmc_base) { + if (IS_ERR(pmc_base)) { dev_err(dev, "could not get memory region\n"); - return -ENODEV; + return PTR_ERR(pmc_base); } return 0; diff --git a/arch/arm/mach-tegra/tegra20-timer.c b/arch/arm/mach-tegra/tegra20-timer.c index 2b32647..ddc70dc 100644 --- a/arch/arm/mach-tegra/tegra20-timer.c +++ b/arch/arm/mach-tegra/tegra20-timer.c @@ -24,6 +24,7 @@ #include #include #include +#include #include /* register definitions */ @@ -51,9 +52,9 @@ return -EBUSY; timer_base = dev_request_mem_region(dev, 0); - if (!timer_base) { + if (IS_ERR(timer_base)) { dev_err(dev, "could not get memory region\n"); - return -ENODEV; + return PTR_ERR(timer_base); } /* diff --git a/arch/arm/mach-zynq/clk-zynq7000.c b/arch/arm/mach-zynq/clk-zynq7000.c index b4513a9..2b9260b 100644 --- a/arch/arm/mach-zynq/clk-zynq7000.c +++ b/arch/arm/mach-zynq/clk-zynq7000.c @@ -363,8 +363,8 @@ unsigned long ps_clk_rate = 33333330; slcr_base = dev_request_mem_region(dev, 0); - if (!slcr_base) - return -EBUSY; + if (IS_ERR(slcr_base)) + return PTR_ERR(slcr_base); clks[ps_clk] = clk_fixed("ps_clk", ps_clk_rate); diff --git a/arch/mips/mach-ar231x/ar231x_reset.c b/arch/mips/mach-ar231x/ar231x_reset.c index 5ececb5..0788add 100644 --- a/arch/mips/mach-ar231x/ar231x_reset.c +++ b/arch/mips/mach-ar231x/ar231x_reset.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include @@ -53,9 +54,9 @@ static int ar231x_reset_probe(struct device_d *dev) { reset_base = dev_request_mem_region(dev, 0); - if (!reset_base) { + if (IS_ERR(reset_base)) { dev_err(dev, "could not get memory region\n"); - return -ENODEV; + return PTR_ERR(reset_base); } return 0; diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 810d9ab..645e9b5 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include #include @@ -654,6 +655,8 @@ ahci = xzalloc(sizeof(*ahci)); regs = dev_request_mem_region(dev, 0); + if (IS_ERR(regs)) + return PTR_ERR(regs); ahci->dev = dev; ahci->mmio_base = regs; diff --git a/drivers/ata/intf_platform_ide.c b/drivers/ata/intf_platform_ide.c index 851f8f5..0d392d8 100644 --- a/drivers/ata/intf_platform_ide.c +++ b/drivers/ata/intf_platform_ide.c @@ -84,7 +84,7 @@ struct ide_port *ide; void *reg_base, *alt_base = NULL; struct resource *reg, *alt; - int mmio; + int mmio = 0; if (pdata == NULL) { dev_err(dev, "No platform data. Cannot continue\n"); @@ -92,9 +92,12 @@ } reg_base = dev_request_mem_region(dev, 0); - mmio = (reg_base != NULL); - if (mmio) { + + if (!IS_ERR(reg_base)) { + mmio = 1; alt_base = dev_request_mem_region(dev, 1); + if (IS_ERR(alt_base)) + alt_base = NULL; } else { reg = dev_get_resource(dev, IORESOURCE_IO, 0); if (IS_ERR(reg)) diff --git a/drivers/ata/pata-imx.c b/drivers/ata/pata-imx.c index 6bd7524..d8deba1 100644 --- a/drivers/ata/pata-imx.c +++ b/drivers/ata/pata-imx.c @@ -161,6 +161,8 @@ ide = xzalloc(sizeof(*ide)); base = dev_request_mem_region(dev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); clk = clk_get(dev, NULL); if (IS_ERR(clk)) { diff --git a/drivers/ata/sata-imx.c b/drivers/ata/sata-imx.c index 450cf4f..1c0e1db 100644 --- a/drivers/ata/sata-imx.c +++ b/drivers/ata/sata-imx.c @@ -99,8 +99,8 @@ } imx_ahci->ahci.mmio_base = dev_request_mem_region(dev, 0); - if (!imx_ahci->ahci.mmio_base) - return -ENODEV; + if (IS_ERR(imx_ahci->ahci.mmio_base)) + return PTR_ERR(imx_ahci->ahci.mmio_base); data->init(imx_ahci); diff --git a/drivers/base/driver.c b/drivers/base/driver.c index e61c6c5..e024024 100644 --- a/drivers/base/driver.c +++ b/drivers/base/driver.c @@ -324,11 +324,11 @@ res = dev_get_resource(dev, IORESOURCE_MEM, num); if (IS_ERR(res)) - return NULL; + return ERR_CAST(res); res = request_iomem_region(dev_name(dev), res->start, res->end); if (IS_ERR(res)) - return NULL; + return ERR_CAST(res); return (void __force __iomem *)res->start; } diff --git a/drivers/bus/imx-weim.c b/drivers/bus/imx-weim.c index 78bccda..9b8848d 100644 --- a/drivers/bus/imx-weim.c +++ b/drivers/bus/imx-weim.c @@ -12,6 +12,7 @@ #include #include #include +#include struct imx_weim_devtype { unsigned int cs_count; @@ -144,8 +145,8 @@ /* get the resource */ weim->base = dev_request_mem_region(dev, 0); - if (!weim->base) { - ret = -EBUSY; + if (IS_ERR(weim->base)) { + ret = PTR_ERR(weim->base); goto weim_err; } diff --git a/drivers/clk/clk-ar933x.c b/drivers/clk/clk-ar933x.c index d983387..79b2571 100644 --- a/drivers/clk/clk-ar933x.c +++ b/drivers/clk/clk-ar933x.c @@ -140,8 +140,8 @@ void __iomem *base; base = dev_request_mem_region(dev, 0); - if (!base) - return -EBUSY; + if (IS_ERR(base)) + return PTR_ERR(base); ar933x_ref_clk_init(base); ar933x_pll_init(base); diff --git a/drivers/clk/mvebu/common.c b/drivers/clk/mvebu/common.c index f3be5f2..0e7f65c 100644 --- a/drivers/clk/mvebu/common.c +++ b/drivers/clk/mvebu/common.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include "common.h" @@ -166,8 +167,8 @@ desc = (const struct clk_gating_soc_desc *)match->data; base = dev_request_mem_region(dev, 0); - if (!base) - return -EINVAL; + if (IS_ERR(base)) + return PTR_ERR(base); clk = of_clk_get(np, 0); if (IS_ERR(clk)) diff --git a/drivers/clk/mxs/clk-imx23.c b/drivers/clk/mxs/clk-imx23.c index 4b15350..1f84e9f 100644 --- a/drivers/clk/mxs/clk-imx23.c +++ b/drivers/clk/mxs/clk-imx23.c @@ -129,6 +129,8 @@ void __iomem *regs; regs = dev_request_mem_region(dev, 0); + if (IS_ERR(regs)) + return PTR_ERR(regs); mx23_clocks_init(regs); diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c index 36b71f6..aa2924c 100644 --- a/drivers/clk/mxs/clk-imx28.c +++ b/drivers/clk/mxs/clk-imx28.c @@ -169,6 +169,8 @@ void __iomem *regs; regs = dev_request_mem_region(dev, 0); + if (IS_ERR(regs)) + return PTR_ERR(regs); mx28_clocks_init(regs); diff --git a/drivers/clk/socfpga.c b/drivers/clk/socfpga.c index f4257fd..be97d13 100644 --- a/drivers/clk/socfpga.c +++ b/drivers/clk/socfpga.c @@ -358,8 +358,8 @@ struct device_node *clknode; regs = dev_request_mem_region(dev, 0); - if (!regs) - return -EBUSY; + if (IS_ERR(regs)) + return PTR_ERR(regs); clk_mgr_base_addr = regs; diff --git a/drivers/clk/tegra/clk-tegra124.c b/drivers/clk/tegra/clk-tegra124.c index 1e89bee..514b22a 100644 --- a/drivers/clk/tegra/clk-tegra124.c +++ b/drivers/clk/tegra/clk-tegra124.c @@ -301,8 +301,8 @@ static int tegra124_car_probe(struct device_d *dev) { car_base = dev_request_mem_region(dev, 0); - if (!car_base) - return -EBUSY; + if (IS_ERR(car_base)) + return PTR_ERR(car_base); tegra124_osc_clk_init(); tegra124_pll_init(); diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c index 5803414..5b4365d 100644 --- a/drivers/clk/tegra/clk-tegra20.c +++ b/drivers/clk/tegra/clk-tegra20.c @@ -339,8 +339,8 @@ static int tegra20_car_probe(struct device_d *dev) { car_base = dev_request_mem_region(dev, 0); - if (!car_base) - return -EBUSY; + if (IS_ERR(car_base)) + return PTR_ERR(car_base); tegra20_osc_clk_init(); tegra20_pll_init(); diff --git a/drivers/clk/tegra/clk-tegra30.c b/drivers/clk/tegra/clk-tegra30.c index 3b50830..ed6d736 100644 --- a/drivers/clk/tegra/clk-tegra30.c +++ b/drivers/clk/tegra/clk-tegra30.c @@ -336,8 +336,8 @@ static int tegra30_car_probe(struct device_d *dev) { car_base = dev_request_mem_region(dev, 0); - if (!car_base) - return -EBUSY; + if (IS_ERR(car_base)) + return PTR_ERR(car_base); tegra30_osc_clk_init(); tegra30_pll_init(); diff --git a/drivers/clocksource/arm_smp_twd.c b/drivers/clocksource/arm_smp_twd.c index 3efe8dd..72045b0 100644 --- a/drivers/clocksource/arm_smp_twd.c +++ b/drivers/clocksource/arm_smp_twd.c @@ -62,6 +62,8 @@ } twd_base = dev_request_mem_region(dev, 0); + if (IS_ERR(twd_base)) + return PTR_ERR(twd_base); tick_rate = clk_get_rate(twd_clk); if (tick_rate > SMP_TWD_MAX_FREQ) { diff --git a/drivers/clocksource/bcm2835.c b/drivers/clocksource/bcm2835.c index d1df3d2..c0b1aae 100644 --- a/drivers/clocksource/bcm2835.c +++ b/drivers/clocksource/bcm2835.c @@ -62,6 +62,8 @@ rate = clk_get_rate(stc_clk); stc_base = dev_request_mem_region(dev, 0); + if (IS_ERR(stc_base)) + return PTR_ERR(stc_base); clocks_calc_mult_shift(&bcm2835_stc.mult, &bcm2835_stc.shift, rate, NSEC_PER_SEC, 60); init_clock(&bcm2835_stc); diff --git a/drivers/clocksource/clps711x.c b/drivers/clocksource/clps711x.c index 8c379d3..a49853f 100644 --- a/drivers/clocksource/clps711x.c +++ b/drivers/clocksource/clps711x.c @@ -38,9 +38,9 @@ rate = clk_get_rate(timer_clk); clps711x_timer_base = dev_request_mem_region(dev, 0); - if (!clps711x_timer_base) { + if (IS_ERR(clps711x_timer_base)) { clk_put(timer_clk); - return -ENOENT; + return PTR_ERR(clps711x_timer_base); } clocks_calc_mult_shift(&clps711x_cs.mult, &clps711x_cs.shift, rate, diff --git a/drivers/clocksource/digic.c b/drivers/clocksource/digic.c index b80ef6f..277bb02 100644 --- a/drivers/clocksource/digic.c +++ b/drivers/clocksource/digic.c @@ -19,6 +19,7 @@ #include #include #include +#include #define DIGIC_TIMER_CLOCK 1000000 @@ -44,9 +45,9 @@ return -EBUSY; timer_base = dev_request_mem_region(dev, 0); - if (!timer_base) { + if (IS_ERR(timer_base)) { dev_err(dev, "could not get memory region\n"); - return -ENODEV; + return PTR_ERR(timer_base); } clocks_calc_mult_shift(&digic_cs.mult, &digic_cs.shift, diff --git a/drivers/clocksource/mvebu.c b/drivers/clocksource/mvebu.c index e5cb921..b8fa985 100644 --- a/drivers/clocksource/mvebu.c +++ b/drivers/clocksource/mvebu.c @@ -60,6 +60,8 @@ u32 rate, div, val; timer_base = dev_request_mem_region(dev, 0); + if (IS_ERR(timer_base)) + return PTR_ERR(timer_base); val = __raw_readl(timer_base + TIMER_CTRL_OFF); val &= ~(TIMER0_25MHZ | TIMER0_DIV_MASK); diff --git a/drivers/clocksource/nomadik.c b/drivers/clocksource/nomadik.c index 8a3e6d9..d7edf06 100644 --- a/drivers/clocksource/nomadik.c +++ b/drivers/clocksource/nomadik.c @@ -124,6 +124,8 @@ /* Save global pointer to mtu, used by functions above */ mtu_base = dev_request_mem_region(dev, 0); + if (IS_ERR(mtu_base)) + return PTR_ERR(mtu_base); /* Init the timer and register clocksource */ nmdk_timer_reset(); diff --git a/drivers/clocksource/orion.c b/drivers/clocksource/orion.c index 46932f1..a1dafd8 100644 --- a/drivers/clocksource/orion.c +++ b/drivers/clocksource/orion.c @@ -49,6 +49,9 @@ uint32_t val; timer_base = dev_request_mem_region(dev, 0); + if (IS_ERR(timer_base)) + return PTR_ERR(timer_base); + tclk = clk_get(dev, NULL); /* setup TIMER0 as free-running clock source */ diff --git a/drivers/clocksource/uemd.c b/drivers/clocksource/uemd.c index 2ea455e..6c37de5 100644 --- a/drivers/clocksource/uemd.c +++ b/drivers/clocksource/uemd.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #define TIMER_LOAD 0x00 @@ -73,9 +74,9 @@ return -EBUSY; timer_base = dev_request_mem_region(dev, 0); - if (!timer_base) { + if (IS_ERR(timer_base)) { dev_err(dev, "could not get memory region\n"); - return -ENODEV; + return PTR_ERR(timer_base); } timer_clk = clk_get(dev, NULL); diff --git a/drivers/dma/apbh_dma.c b/drivers/dma/apbh_dma.c index 665d394..cd218f4 100644 --- a/drivers/dma/apbh_dma.c +++ b/drivers/dma/apbh_dma.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include @@ -597,8 +598,8 @@ apbh_dma = apbh = xzalloc(sizeof(*apbh)); apbh->regs = dev_request_mem_region(dev, 0); - if (!apbh->regs) - return -EBUSY; + if (IS_ERR(apbh->regs)) + return PTR_ERR(apbh->regs); apbh->id = id; diff --git a/drivers/gpio/gpio-clps711x.c b/drivers/gpio/gpio-clps711x.c index 2f12439..7d3f1ff 100644 --- a/drivers/gpio/gpio-clps711x.c +++ b/drivers/gpio/gpio-clps711x.c @@ -26,18 +26,22 @@ return -ENODEV; dat = dev_request_mem_region(dev, 0); + if (IS_ERR(dat)) + return PTR_ERR(dat); + switch (id) { case 3: dir_inv = dev_request_mem_region(dev, 1); + if (IS_ERR(dir_inv)) + return PTR_ERR(dir_inv); break; default: dir = dev_request_mem_region(dev, 1); + if (IS_ERR(dir)) + return PTR_ERR(dir); break; } - if (!dat || (!dir && !dir_inv)) - return -EINVAL; - bgc = xzalloc(sizeof(struct bgpio_chip)); if (!bgc) return -ENOMEM; diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c index 7d15b85..2b1d82b 100644 --- a/drivers/gpio/gpio-davinci.c +++ b/drivers/gpio/gpio-davinci.c @@ -163,9 +163,9 @@ chips = xzalloc((ngpio / 32 + 1) * sizeof(*chips)); gpio_base = dev_request_mem_region(dev, 0); - if (!gpio_base) { + if (IS_ERR(gpio_base)) { dev_err(dev, "could not get memory region\n"); - return -ENODEV; + return PTR_ERR(gpio_base); } for (i = 0, base = 0; base < ngpio; i++, base += 32) { diff --git a/drivers/gpio/gpio-dw.c b/drivers/gpio/gpio-dw.c index e46cc8e..e582eb6 100644 --- a/drivers/gpio/gpio-dw.c +++ b/drivers/gpio/gpio-dw.c @@ -22,6 +22,7 @@ #include #include #include +#include #define DW_GPIO_DR 0x0 #define DW_GPIO_DDR 0x4 @@ -114,8 +115,8 @@ chip = xzalloc(sizeof(*chip)); chip->regs = dev_request_mem_region(dev, 0); - if (!chip->regs) - return -EBUSY; + if (IS_ERR(chip->regs)) + return PTR_ERR(chip->regs); chip->chip.ops = &imx_gpio_ops; if (dev->id < 0) { diff --git a/drivers/gpio/gpio-jz4740.c b/drivers/gpio/gpio-jz4740.c index 3c8efad..f7e6781 100644 --- a/drivers/gpio/gpio-jz4740.c +++ b/drivers/gpio/gpio-jz4740.c @@ -21,6 +21,7 @@ #include #include #include +#include #define JZ_REG_GPIO_PIN 0x00 #define JZ_REG_GPIO_DATA 0x10 @@ -94,9 +95,9 @@ int ret; base = dev_request_mem_region(dev, 0); - if (!base) { + if (IS_ERR(base)) { dev_err(dev, "could not get memory region\n"); - return -ENODEV; + return PTR_ERR(base); } jz4740_gpio = xzalloc(sizeof(*jz4740_gpio)); diff --git a/drivers/gpio/gpio-malta-fpga-i2c.c b/drivers/gpio/gpio-malta-fpga-i2c.c index d6995aa..ff77b8c 100644 --- a/drivers/gpio/gpio-malta-fpga-i2c.c +++ b/drivers/gpio/gpio-malta-fpga-i2c.c @@ -138,9 +138,9 @@ int ret; gpio_base = dev_request_mem_region(dev, 0); - if (!gpio_base) { + if (IS_ERR(gpio_base)) { dev_err(dev, "could not get memory region\n"); - return -ENODEV; + return PTR_ERR(gpio_base); } sc = xzalloc(sizeof(*sc)); diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index e66a614..ff31b15 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -36,6 +36,7 @@ #include #include #include +#include #define OMAP_GPIO_OE 0x0034 #define OMAP_GPIO_DATAIN 0x0038 @@ -147,6 +148,9 @@ omapgpio = xzalloc(sizeof(*omapgpio)); omapgpio->base = dev_request_mem_region(dev, 0); + if (IS_ERR(omapgpio->base)) + return PTR_ERR(omapgpio->base); + if (drvdata) omapgpio->base += drvdata->regofs; diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c index bab32ee..d4eea4e 100644 --- a/drivers/gpio/gpio-tegra.c +++ b/drivers/gpio/gpio-tegra.c @@ -149,9 +149,9 @@ } gpio_base = dev_request_mem_region(dev, 0); - if (!gpio_base) { + if (IS_ERR(gpio_base)) { dev_err(dev, "could not get memory region\n"); - return -ENODEV; + return PTR_ERR(gpio_base); } for (i = 0; i < config->bank_count; i++) { diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index 6b39047..714e83c 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c @@ -548,6 +548,9 @@ i2c_fsl->adapter.dev.parent = pdev; i2c_fsl->adapter.dev.device_node = pdev->device_node; i2c_fsl->base = dev_request_mem_region(pdev, 0); + if (IS_ERR(i2c_fsl->base)) + return PTR_ERR(i2c_fsl->base); + i2c_fsl->dfsrr = -1; /* Set up clock divider */ diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index adc952b..0d714cc 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -1023,6 +1023,8 @@ i2c_omap->speed = speed; i2c_omap->base = dev_request_mem_region(pdev, 0); + if (IS_ERR(i2c_omap->base)) + return PTR_ERR(i2c_omap->base); /* * Read the Rev hi bit-[15:14] ie scheme this is 1 indicates ver2. diff --git a/drivers/i2c/busses/i2c-versatile.c b/drivers/i2c/busses/i2c-versatile.c index 4fead61..bfabc78 100644 --- a/drivers/i2c/busses/i2c-versatile.c +++ b/drivers/i2c/busses/i2c-versatile.c @@ -15,6 +15,7 @@ #include #include #include +#include #define I2C_CONTROL 0x00 #define I2C_CONTROLS 0x00 @@ -75,8 +76,8 @@ } i2c->base = dev_request_mem_region(dev, 0); - if (!i2c->base) { - ret = -ENOMEM; + if (IS_ERR(i2c->base)) { + ret = PTR_ERR(i2c->base); goto err_free; } diff --git a/drivers/input/imx_keypad.c b/drivers/input/imx_keypad.c index afe93c3..c67deb8 100644 --- a/drivers/input/imx_keypad.c +++ b/drivers/input/imx_keypad.c @@ -47,6 +47,7 @@ #include #include #include +#include /* * Keypad Controller registers (halfword) @@ -401,6 +402,8 @@ keypad->dev = dev; keypad->mmio_base = dev_request_mem_region(dev, 0); + if (IS_ERR(keypad->mmio_base)) + return PTR_ERR(keypad->mmio_base); if(!keypad->fifo_size) keypad->fifo_size = 50; diff --git a/drivers/mci/atmel_mci.c b/drivers/mci/atmel_mci.c index 36107a6..63d2475 100644 --- a/drivers/mci/atmel_mci.c +++ b/drivers/mci/atmel_mci.c @@ -572,6 +572,8 @@ host->slot_b = pd->slot_b; host->regs = dev_request_mem_region(hw_dev, 0); + if (IS_ERR(host->regs)) + return PTR_ERR(host->regs); host->hw_dev = hw_dev; hw_dev->priv = host; host->clk = clk_get(hw_dev, "mci_clk"); diff --git a/drivers/mci/dw_mmc.c b/drivers/mci/dw_mmc.c index 4c2f3c6..365b60d 100644 --- a/drivers/mci/dw_mmc.c +++ b/drivers/mci/dw_mmc.c @@ -547,8 +547,8 @@ host->dev = dev; host->ioaddr = dev_request_mem_region(dev, 0); - if (!host->ioaddr) - return -EBUSY; + if (IS_ERR(host->ioaddr)) + return PTR_ERR(host->ioaddr); if (pdata) { mci->devname = pdata->devname; diff --git a/drivers/mci/imx-esdhc.c b/drivers/mci/imx-esdhc.c index f5e78e0..487cd41 100644 --- a/drivers/mci/imx-esdhc.c +++ b/drivers/mci/imx-esdhc.c @@ -536,6 +536,8 @@ host->dev = dev; host->regs = dev_request_mem_region(dev, 0); + if (IS_ERR(host->regs)) + return PTR_ERR(host->regs); /* First reset the eSDHC controller */ ret = esdhc_reset(host->regs); diff --git a/drivers/mci/imx.c b/drivers/mci/imx.c index 6992177..9c8c1b1 100644 --- a/drivers/mci/imx.c +++ b/drivers/mci/imx.c @@ -508,6 +508,8 @@ host->mci.hw_dev = dev; host->base = dev_request_mem_region(dev, 0); + if (IS_ERR(host->base)) + return PTR_ERR(host->base); host->mci.voltages = MMC_VDD_32_33 | MMC_VDD_33_34; diff --git a/drivers/mci/mci-bcm2835.c b/drivers/mci/mci-bcm2835.c index 7d8997c..59c667f 100644 --- a/drivers/mci/mci-bcm2835.c +++ b/drivers/mci/mci-bcm2835.c @@ -35,6 +35,7 @@ #include #include #include +#include #include "mci-bcm2835.h" #include "sdhci.h" @@ -505,9 +506,9 @@ host->hw_dev = hw_dev; host->max_clock = clk_get_rate(clk); host->regs = dev_request_mem_region(hw_dev, 0); - if (host->regs == NULL) { + if (IS_ERR(host->regs)) { dev_err(host->hw_dev, "Failed request mem region, aborting...\n"); - return -EBUSY; + return PTR_ERR(host->regs); } host->mci.host_caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_SD_HIGHSPEED | diff --git a/drivers/mci/mxs.c b/drivers/mci/mxs.c index bf928e8..6e02d46 100644 --- a/drivers/mci/mxs.c +++ b/drivers/mci/mxs.c @@ -566,6 +566,8 @@ host->set_ios = mxs_mci_set_ios; host->init = mxs_mci_initialize; mxs_mci->regs = dev_request_mem_region(hw_dev, 0); + if (IS_ERR(mxs_mci->regs)) + return PTR_ERR(mxs_mci->regs); /* feed forward the platform specific values */ host->voltages = pd->voltages; diff --git a/drivers/mci/omap_hsmmc.c b/drivers/mci/omap_hsmmc.c index 9cce916..c9bc71d 100644 --- a/drivers/mci/omap_hsmmc.c +++ b/drivers/mci/omap_hsmmc.c @@ -26,6 +26,7 @@ #include #include #include +#include #include @@ -604,6 +605,8 @@ hsmmc->mci.hw_dev = dev; hsmmc->iobase = dev_request_mem_region(dev, 0); + if (IS_ERR(hsmmc->iobase)) + return PTR_ERR(hsmmc->iobase); hsmmc->base = hsmmc->iobase + reg_ofs; hsmmc->mci.voltages = MMC_VDD_32_33 | MMC_VDD_33_34; diff --git a/drivers/mci/pxamci.c b/drivers/mci/pxamci.c index 5ab88b8..6b14aba 100644 --- a/drivers/mci/pxamci.c +++ b/drivers/mci/pxamci.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -339,6 +340,8 @@ clk_enable(); host = xzalloc(sizeof(*host)); host->base = dev_request_mem_region(dev, 0); + if (IS_ERR(host->base)) + return PTR_ERR(host->base); host->mci.init = pxamci_init; host->mci.send_cmd = pxamci_request; diff --git a/drivers/mci/s3c.c b/drivers/mci/s3c.c index 773c84a..3afd61e 100644 --- a/drivers/mci/s3c.c +++ b/drivers/mci/s3c.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #include #include @@ -741,6 +742,9 @@ hw_dev->priv = s3c_host; s3c_host->base = dev_request_mem_region(hw_dev, 0); + if (IS_ERR(s3c_host->base)) + return PTR_ERR(s3c_host->base); + s3c_host->host.hw_dev = hw_dev; /* feed forward the platform specific values */ diff --git a/drivers/mci/tegra-sdmmc.c b/drivers/mci/tegra-sdmmc.c index 08b9dac..0e23d6f 100644 --- a/drivers/mci/tegra-sdmmc.c +++ b/drivers/mci/tegra-sdmmc.c @@ -29,6 +29,7 @@ #include #include #include +#include #include "sdhci.h" @@ -432,9 +433,9 @@ return PTR_ERR(host->reset); host->regs = dev_request_mem_region(dev, 0); - if (!host->regs) { + if (IS_ERR(host->regs)) { dev_err(dev, "could not get iomem region\n"); - return -ENODEV; + return PTR_ERR(host->regs); } mci->hw_dev = dev; diff --git a/drivers/misc/sram.c b/drivers/misc/sram.c index c89fe87..9769325 100644 --- a/drivers/misc/sram.c +++ b/drivers/misc/sram.c @@ -17,6 +17,7 @@ #include #include #include +#include struct sram { struct resource *res; @@ -39,8 +40,8 @@ int ret; base = dev_request_mem_region(dev, 0); - if (!base) - return -EBUSY; + if (IS_ERR(base)) + return PTR_ERR(base); sram = xzalloc(sizeof(*sram)); diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 1e7c6c6..524606a 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -34,6 +34,7 @@ #include #include +#include #include #include @@ -1199,6 +1200,8 @@ return -ENOMEM; host->io_base = dev_request_mem_region(dev, 0); + if (IS_ERR(host->io_base)) + return PTR_ERR(host->io_base); mtd = &host->mtd; nand_chip = &host->nand_chip; diff --git a/drivers/mtd/nand/nand_mxs.c b/drivers/mtd/nand/nand_mxs.c index 5a4449d..8989de0 100644 --- a/drivers/mtd/nand/nand_mxs.c +++ b/drivers/mtd/nand/nand_mxs.c @@ -1254,7 +1254,12 @@ nand_info->type = type; nand_info->io_base = dev_request_mem_region(dev, 0); + if (IS_ERR(nand_info->io_base)) + return PTR_ERR(nand_info->io_base); + nand_info->bch_base = dev_request_mem_region(dev, 1); + if (IS_ERR(nand_info->bch_base)) + return PTR_ERR(nand_info->bch_base); nand_info->clk = clk_get(dev, NULL); if (IS_ERR(nand_info->clk)) diff --git a/drivers/mtd/nand/nand_orion.c b/drivers/mtd/nand/nand_orion.c index a1c77b3..2c9707d 100644 --- a/drivers/mtd/nand/nand_orion.c +++ b/drivers/mtd/nand/nand_orion.c @@ -94,8 +94,8 @@ chip = &priv->chip; io_base = dev_request_mem_region(dev, 0); - if (!io_base) - return -EBUSY; + if (IS_ERR(io_base)) + return PTR_ERR(io_base); if (!of_property_read_u32(dev_node, "cle", &val)) priv->cle = (u8)val; diff --git a/drivers/mtd/nor/cfi_flash.c b/drivers/mtd/nor/cfi_flash.c index a8118cb..a494063 100644 --- a/drivers/mtd/nor/cfi_flash.c +++ b/drivers/mtd/nor/cfi_flash.c @@ -39,6 +39,7 @@ #include #include #include +#include #include "cfi_flash.h" /* @@ -987,6 +988,9 @@ info->flash_id = FLASH_UNKNOWN; info->cmd_reset = FLASH_CMD_RESET; info->base = dev_request_mem_region(dev, 0); + if (IS_ERR(info->base)) + return PTR_ERR(info->base); + info->dev = dev; info->size = flash_get_size(info); diff --git a/drivers/net/altera_tse.c b/drivers/net/altera_tse.c index 4bbf595..ecbb9f8 100644 --- a/drivers/net/altera_tse.c +++ b/drivers/net/altera_tse.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include @@ -515,6 +516,8 @@ #ifdef CONFIG_TSE_USE_DEDICATED_DESC_MEM tx_desc = dev_request_mem_region(dev, 3); + if (IS_ERR(tx_desc)) + return PTR_ERR(tx_desc); rx_desc = tx_desc + 2; #else tx_desc = dma_alloc_coherent(sizeof(*tx_desc) * (3 + PKTBUFSRX), (unsigned long *)&dma_handle); @@ -531,8 +534,14 @@ memset(tx_desc, 0, (sizeof *tx_desc) * 2); priv->tse_regs = dev_request_mem_region(dev, 0); + if (IS_ERR(priv->tse_regs)) + return PTR_ERR(priv->tse_regs); priv->sgdma_rx_regs = dev_request_mem_region(dev, 1); + if (IS_ERR(priv->sgdma_rx_regs)) + return PTR_ERR(priv->sgdma_rx_regs); priv->sgdma_tx_regs = dev_request_mem_region(dev, 2); + if (IS_ERR(priv->sgdma_tx_regs)) + return PTR_ERR(priv->sgdma_tx_regs); priv->rx_desc = rx_desc; priv->tx_desc = tx_desc; diff --git a/drivers/net/ar231x.c b/drivers/net/ar231x.c index 572008a..48e4b30 100644 --- a/drivers/net/ar231x.c +++ b/drivers/net/ar231x.c @@ -26,6 +26,7 @@ #include #include #include +#include #include "ar231x.h" @@ -384,18 +385,18 @@ priv->reset_bit = pdata->reset_bit; priv->eth_regs = dev_request_mem_region(dev, 0); - if (priv->eth_regs == NULL) { + if (IS_ERR(priv->eth_regs)) { dev_err(dev, "No eth_regs!!\n"); - return -ENODEV; + return PTR_ERR(priv->eth_regs); } /* we have 0x100000 for eth, part of it are dma regs. * So they are already requested */ priv->dma_regs = (void *)(priv->eth_regs + 0x1000); priv->phy_regs = dev_request_mem_region(dev, 1); - if (priv->phy_regs == NULL) { + if (IS_ERR(priv->phy_regs)) { dev_err(dev, "No phy_regs!!\n"); - return -ENODEV; + return PTR_ERR(priv->phy_regs); } priv->cfg = pdata; diff --git a/drivers/net/arc_emac.c b/drivers/net/arc_emac.c index 8b74ea5..1770506 100644 --- a/drivers/net/arc_emac.c +++ b/drivers/net/arc_emac.c @@ -22,6 +22,7 @@ #include #include #include +#include /* ARC EMAC register set combines entries for MAC and MDIO */ enum { @@ -400,6 +401,8 @@ priv = edev->priv; priv->regs = dev_request_mem_region(dev, 0); + if (IS_ERR(priv->regs)) + return PTR_ERR(priv->regs); priv->bus = miibus; id = arc_reg_get(priv, R_ID); diff --git a/drivers/net/cpsw.c b/drivers/net/cpsw.c index ccae537..167b2dd 100644 --- a/drivers/net/cpsw.c +++ b/drivers/net/cpsw.c @@ -34,6 +34,7 @@ #include #include #include +#include #include @@ -1109,6 +1110,8 @@ dev_dbg(dev, "* %s\n", __func__); regs = dev_request_mem_region(dev, 0); + if (IS_ERR(regs)) + return PTR_ERR(regs); priv = xzalloc(sizeof(*priv)); priv->dev = dev; diff --git a/drivers/net/designware.c b/drivers/net/designware.c index e87bdff..49ed0b1 100644 --- a/drivers/net/designware.c +++ b/drivers/net/designware.c @@ -29,6 +29,7 @@ #include #include #include +#include #include "designware.h" struct dw_eth_dev { @@ -440,6 +441,9 @@ } base = dev_request_mem_region(dev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); + priv->mac_regs_p = base; dwc_version(dev, readl(&priv->mac_regs_p->version)); priv->dma_regs_p = base + DW_DMA_BASE_OFFSET; diff --git a/drivers/net/ethoc.c b/drivers/net/ethoc.c index 679e1e5..59e8f01 100644 --- a/drivers/net/ethoc.c +++ b/drivers/net/ethoc.c @@ -17,6 +17,7 @@ #include #include #include +#include /* register offsets */ #define MODER 0x00 @@ -542,6 +543,8 @@ priv = edev->priv; priv->iobase = dev_request_mem_region(dev, 0); + if (IS_ERR(priv->iobase)) + return PTR_ERR(priv->iobase); priv->miibus.read = ethoc_mdio_read; priv->miibus.write = ethoc_mdio_write; diff --git a/drivers/net/fec_mpc5200.c b/drivers/net/fec_mpc5200.c index 41a3b58..f431d79 100644 --- a/drivers/net/fec_mpc5200.c +++ b/drivers/net/fec_mpc5200.c @@ -16,6 +16,7 @@ #include #include #include +#include #include "fec_mpc5200.h" #define CONFIG_PHY_ADDR 1 /* FIXME */ @@ -655,6 +656,8 @@ edev->parent = dev; fec->eth = dev_request_mem_region(dev, 0); + if (IS_ERR(fec->eth)) + return PTR_ERR(fec->eth); fec->tbdBase = (FEC_TBD *)FEC_BD_BASE; fec->rbdBase = (FEC_RBD *)(FEC_BD_BASE + FEC_TBD_NUM * sizeof(FEC_TBD)); diff --git a/drivers/net/ks8851_mll.c b/drivers/net/ks8851_mll.c index 83d1b02..a8974cf 100644 --- a/drivers/net/ks8851_mll.c +++ b/drivers/net/ks8851_mll.c @@ -29,6 +29,7 @@ #include #include #include +#include #define MAX_RECV_FRAMES 32 #define MAX_BUF_SIZE 2048 @@ -823,7 +824,12 @@ } ks->hw_addr = dev_request_mem_region(dev, 0); + if (IS_ERR(ks->hw_addr)) + return PTR_ERR(ks->hw_addr); + ks->hw_addr_cmd = dev_request_mem_region(dev, 1); + if (IS_ERR(ks->hw_addr_cmd)) + return PTR_ERR(ks->hw_addr_cmd); ks->bus_width = dev->resource[0].flags & IORESOURCE_MEM_TYPE_MASK; edev->init = ks8851_init_dev; diff --git a/drivers/net/macb.c b/drivers/net/macb.c index 12a2a3c..03558af 100644 --- a/drivers/net/macb.c +++ b/drivers/net/macb.c @@ -642,6 +642,8 @@ macb->phy_flags = pdata->phy_flags; macb->regs = dev_request_mem_region(dev, 0); + if (IS_ERR(macb->regs)) + return PTR_ERR(macb->regs); /* * Do some basic initialization so that we at least can talk diff --git a/drivers/net/smc91111.c b/drivers/net/smc91111.c index 7baa749..55d9367 100644 --- a/drivers/net/smc91111.c +++ b/drivers/net/smc91111.c @@ -66,6 +66,7 @@ #include #include #include +#include #include /*--------------------------------------------------------------- @@ -1330,6 +1331,8 @@ priv->miibus.priv = priv; priv->miibus.parent = dev; priv->base = dev_request_mem_region(dev, 0); + if (IS_ERR(priv->base)) + return PTR_ERR(priv->base); smc91c111_reset(edev); diff --git a/drivers/pinctrl/imx-iomux-v2.c b/drivers/pinctrl/imx-iomux-v2.c index cef0340..2622d9a 100644 --- a/drivers/pinctrl/imx-iomux-v2.c +++ b/drivers/pinctrl/imx-iomux-v2.c @@ -17,6 +17,7 @@ #include #include #include +#include #include /* @@ -118,6 +119,8 @@ static int imx_iomux_probe(struct device_d *dev) { base = dev_request_mem_region(dev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); return 0; } diff --git a/drivers/pinctrl/mvebu/armada-xp.c b/drivers/pinctrl/mvebu/armada-xp.c index 9f79d37..8c71867 100644 --- a/drivers/pinctrl/mvebu/armada-xp.c +++ b/drivers/pinctrl/mvebu/armada-xp.c @@ -375,8 +375,8 @@ struct mvebu_pinctrl_soc_info *soc = &armada_xp_pinctrl_info; mpp_base = dev_request_mem_region(dev, 0); - if (!mpp_base) - return -EBUSY; + if (IS_ERR(mpp_base)) + return PTR_ERR(mpp_base); soc->variant = (enum armada_xp_variant)match->data; diff --git a/drivers/pinctrl/mvebu/kirkwood.c b/drivers/pinctrl/mvebu/kirkwood.c index 94ab105..0514248 100644 --- a/drivers/pinctrl/mvebu/kirkwood.c +++ b/drivers/pinctrl/mvebu/kirkwood.c @@ -13,6 +13,7 @@ #include #include #include +#include #include "common.h" @@ -437,8 +438,8 @@ (struct mvebu_pinctrl_soc_info *)match->data; mpp_base = dev_request_mem_region(dev, 0); - if (!mpp_base) - return -EBUSY; + if (IS_ERR(mpp_base)) + return PTR_ERR(mpp_base); return mvebu_pinctrl_probe(dev, soc); } diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index 29e54cf..0d6d2e7 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -653,8 +653,8 @@ gpio_banks = max(gpio_banks, alias_idx + 1); at91_gpio->regbase = dev_request_mem_region(dev, 0); - if (!at91_gpio->regbase) - return -EBUSY; + if (IS_ERR(at91_gpio->regbase)) + return PTR_ERR(at91_gpio->regbase); at91_gpio->chip.ops = &at91_gpio_ops; at91_gpio->chip.ngpio = MAX_NB_GPIO_PER_BANK; diff --git a/drivers/pinctrl/pinctrl-tegra20.c b/drivers/pinctrl/pinctrl-tegra20.c index 053981f..3c11be6 100644 --- a/drivers/pinctrl/pinctrl-tegra20.c +++ b/drivers/pinctrl/pinctrl-tegra20.c @@ -28,6 +28,7 @@ #include #include #include +#include struct pinctrl_tegra20 { struct { @@ -309,9 +310,9 @@ regs = (u32 **)&ctrl->regs; for (i = 0; i <= 2; i++) { regs[i] = dev_request_mem_region(dev, i); - if (!regs[i]) { + if (IS_ERR(regs[i])) { dev_err(dev, "Could not get iomem region %d\n", i); - return -ENODEV; + return PTR_ERR(regs[i]); } } diff --git a/drivers/pinctrl/pinctrl-tegra30.c b/drivers/pinctrl/pinctrl-tegra30.c index 5cacfae..8277218 100644 --- a/drivers/pinctrl/pinctrl-tegra30.c +++ b/drivers/pinctrl/pinctrl-tegra30.c @@ -22,6 +22,7 @@ #include #include #include +#include struct pinctrl_tegra30_drvdata; @@ -884,9 +885,9 @@ regs = (u32 **)&ctrl->regs; for (i = 0; i <= 1; i++) { regs[i] = dev_request_mem_region(dev, i); - if (!regs[i]) { + if (IS_ERR(regs[i])) { dev_err(dev, "Could not get iomem region %d\n", i); - return -ENODEV; + return PTR_ERR(regs[i]); } } diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c index e29341f..fbfc3af 100644 --- a/drivers/pwm/pwm-imx.c +++ b/drivers/pwm/pwm-imx.c @@ -14,6 +14,7 @@ #include #include #include +#include #include /* i.MX1 and i.MX21 share the same PWM function block: */ @@ -237,8 +238,8 @@ } imx->mmio_base = dev_request_mem_region(dev, 0); - if (!imx->mmio_base) - return -EBUSY; + if (IS_ERR(imx->mmio_base)) + return PTR_ERR(imx->mmio_base); imx->config = data->config; imx->set_enable = data->set_enable; diff --git a/drivers/serial/atmel.c b/drivers/serial/atmel.c index c2a5d33..1f40692 100644 --- a/drivers/serial/atmel.c +++ b/drivers/serial/atmel.c @@ -399,6 +399,9 @@ struct atmel_uart_port *uart = to_atmel_uart_port(cdev); uart->base = dev_request_mem_region(dev, 0); + if (IS_ERR(uart->base)) + return PTR_ERR(uart->base); + uart->clk = clk_get(dev, "usart"); clk_enable(uart->clk); uart->uartclk = clk_get_rate(uart->clk); diff --git a/drivers/serial/serial_ar933x.c b/drivers/serial/serial_ar933x.c index 27cccba..51184aa 100644 --- a/drivers/serial/serial_ar933x.c +++ b/drivers/serial/serial_ar933x.c @@ -163,6 +163,9 @@ cdev = xzalloc(sizeof(struct console_device)); priv = xzalloc(sizeof(struct ar933x_uart_priv)); priv->base = dev_request_mem_region(dev, 0); + if (IS_ERR(priv->base)) + return PTR_ERR(priv->base); + dev->priv = priv; cdev->dev = dev; diff --git a/drivers/serial/serial_auart.c b/drivers/serial/serial_auart.c index 1980516..ae6c5b8 100644 --- a/drivers/serial/serial_auart.c +++ b/drivers/serial/serial_auart.c @@ -196,6 +196,8 @@ dev->priv = priv; priv->base = dev_request_mem_region(dev, 0); + if (IS_ERR(priv->base)) + return PTR_ERR(priv->base); priv->clk = clk_get(dev, NULL); if (IS_ERR(priv->clk)) return PTR_ERR(priv->clk); diff --git a/drivers/serial/serial_cadence.c b/drivers/serial/serial_cadence.c index a1b76d0..10df506 100644 --- a/drivers/serial/serial_cadence.c +++ b/drivers/serial/serial_cadence.c @@ -240,8 +240,8 @@ clk_set_rate(priv->clk, clk_get_rate(priv->clk) / 8); priv->regs = dev_request_mem_region(dev, 0); - if (!priv->regs) { - ret = -EBUSY; + if (IS_ERR(priv->regs)) { + ret = PTR_ERR(priv->regs); goto err_free; } diff --git a/drivers/serial/serial_mpc5xxx.c b/drivers/serial/serial_mpc5xxx.c index 18aca87..f48255b 100644 --- a/drivers/serial/serial_mpc5xxx.c +++ b/drivers/serial/serial_mpc5xxx.c @@ -36,6 +36,7 @@ #include #include #include +#include static int __mpc5xxx_serial_setbaudrate(struct mpc5xxx_psc *psc, int baudrate) { @@ -148,6 +149,8 @@ cdev = xzalloc(sizeof(struct console_device)); dev->priv = dev_request_mem_region(dev, 0); + if (IS_ERR(dev->priv)) + return PTR_ERR(dev->priv); cdev->dev = dev; cdev->tstc = mpc5xxx_serial_tstc; cdev->putc = mpc5xxx_serial_putc; diff --git a/drivers/serial/serial_ns16550.c b/drivers/serial/serial_ns16550.c index dd0986c..78a674a 100644 --- a/drivers/serial/serial_ns16550.c +++ b/drivers/serial/serial_ns16550.c @@ -321,6 +321,8 @@ return PTR_ERR(res); priv->mmiobase = dev_request_mem_region(dev, 0); + if (IS_ERR(priv->mmiobase)) + return PTR_ERR(priv->mmiobase); width = res->flags & IORESOURCE_MEM_TYPE_MASK; switch (width) { diff --git a/drivers/serial/stm-serial.c b/drivers/serial/stm-serial.c index 3fec1ce..39ff7ae 100644 --- a/drivers/serial/stm-serial.c +++ b/drivers/serial/stm-serial.c @@ -162,6 +162,8 @@ dev->priv = priv; priv->base = dev_request_mem_region(dev, 0); + if (IS_ERR(priv->base)) + return PTR_ERR(priv->base); priv->clk = clk_get(dev, NULL); if (IS_ERR(priv->clk)) return PTR_ERR(priv->clk); diff --git a/drivers/spi/altera_spi.c b/drivers/spi/altera_spi.c index 983b877..bf1add8 100644 --- a/drivers/spi/altera_spi.c +++ b/drivers/spi/altera_spi.c @@ -222,6 +222,9 @@ master->bus_num = pdata->bus_num; altera_spi->regs = dev_request_mem_region(dev, 0); + if (IS_ERR(altera_spi->regs)) + return PTR_ERR(altera_spi->regs); + altera_spi->databits = pdata->databits; altera_spi->speed = pdata->speed; altera_spi->mode = pdata->spi_mode; diff --git a/drivers/spi/mvebu_spi.c b/drivers/spi/mvebu_spi.c index 4a6d96f..c2a2e50 100644 --- a/drivers/spi/mvebu_spi.c +++ b/drivers/spi/mvebu_spi.c @@ -343,8 +343,8 @@ priv = xzalloc(sizeof(*priv)); priv->base = dev_request_mem_region(dev, 0); - if (!priv->base) { - ret = -EINVAL; + if (IS_ERR(priv->base)) { + ret = PTR_ERR(priv->base); goto err_free; } priv->set_baudrate = (void *)match->data; diff --git a/drivers/spi/mxs_spi.c b/drivers/spi/mxs_spi.c index a00784f..9a35e09 100644 --- a/drivers/spi/mxs_spi.c +++ b/drivers/spi/mxs_spi.c @@ -267,6 +267,9 @@ mxs->mode = SPI_CPOL | SPI_CPHA; mxs->regs = dev_request_mem_region(dev, 0); + if (IS_ERR(mxs->regs)) + return PTR_ERR(mxs->regs); + mxs->clk = clk_get(dev, NULL); if (IS_ERR(mxs->clk)) return PTR_ERR(mxs->clk); diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 2b19be9..2f0d5ed 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -1432,8 +1432,8 @@ } udc->udp_baseaddr = dev_request_mem_region(dev, 0); - if (!udc->udp_baseaddr) { - retval = -ENOMEM; + if (IS_ERR(udc->udp_baseaddr)) { + retval = PTR_ERR(udc->udp_baseaddr); goto fail0a; } diff --git a/drivers/usb/gadget/fsl_udc.c b/drivers/usb/gadget/fsl_udc.c index 5a625d1..877d2df 100644 --- a/drivers/usb/gadget/fsl_udc.c +++ b/drivers/usb/gadget/fsl_udc.c @@ -9,6 +9,7 @@ #include #include #include +#include /* ### define USB registers here */ @@ -2320,6 +2321,9 @@ { void __iomem *regs = dev_request_mem_region(dev, 0); + if (IS_ERR(regs)) + return PTR_ERR(regs); + return ci_udc_register(dev, regs); } diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index c0ea8d0..5624552 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -30,6 +30,7 @@ #include #include #include +#include #include "ehci.h" @@ -924,6 +925,9 @@ data.flags = EHCI_HAS_TT; data.hccr = dev_request_mem_region(dev, 0); + if (IS_ERR(data.hccr)) + return PTR_ERR(data.hccr); + if (dev->num_resources > 1) data.hcor = dev_request_mem_region(dev, 1); else diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 3d18a73..622f5c3 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -47,6 +47,7 @@ #include #include #include +#include #include #include @@ -1812,6 +1813,8 @@ usb_register_host(host); ohci->regs = dev_request_mem_region(dev, 0); + if (IS_ERR(ohci->regs)) + return PTR_ERR(ohci->regs); return 0; } diff --git a/drivers/usb/imx/chipidea-imx.c b/drivers/usb/imx/chipidea-imx.c index 62feae8..ffa46da 100644 --- a/drivers/usb/imx/chipidea-imx.c +++ b/drivers/usb/imx/chipidea-imx.c @@ -24,6 +24,7 @@ #include #include #include +#include #define MXC_EHCI_PORTSC_MASK ((0xf << 28) | (1 << 25)) @@ -242,8 +243,8 @@ regulator_enable(ci->vbus); base = dev_request_mem_region(dev, 0); - if (!base) - return -ENODEV; + if (IS_ERR(base)) + return PTR_ERR(base); ci->base = base; diff --git a/drivers/video/atmel_lcdfb_core.c b/drivers/video/atmel_lcdfb_core.c index 9748bba..420ccbe 100644 --- a/drivers/video/atmel_lcdfb_core.c +++ b/drivers/video/atmel_lcdfb_core.c @@ -258,6 +258,8 @@ sinfo = xzalloc(sizeof(*sinfo)); sinfo->pdata = pdata; sinfo->mmio = dev_request_mem_region(dev, 0); + if (IS_ERR(sinfo->mmio)) + return PTR_ERR(sinfo->mmio); sinfo->dev_data = data; diff --git a/drivers/video/imx-ipu-fb.c b/drivers/video/imx-ipu-fb.c index abac812..a69df50 100644 --- a/drivers/video/imx-ipu-fb.c +++ b/drivers/video/imx-ipu-fb.c @@ -1001,6 +1001,8 @@ return PTR_ERR(fbi->clk); fbi->regs = dev_request_mem_region(dev, 0); + if (IS_ERR(fbi->regs)) + return PTR_ERR(fbi->regs); fbi->dev = dev; fbi->enable = pdata->enable; fbi->disp_data_fmt = pdata->disp_data_fmt; diff --git a/drivers/video/imx.c b/drivers/video/imx.c index b12c09c..b1066e1 100644 --- a/drivers/video/imx.c +++ b/drivers/video/imx.c @@ -544,6 +544,9 @@ fbi->mode = pdata->mode; fbi->regs = dev_request_mem_region(dev, 0); + if (IS_ERR(fbi->regs)) + return PTR_ERR(fbi->regs); + fbi->pcr = pdata->mode->pcr; fbi->pwmr = pdata->pwmr; fbi->lscr1 = pdata->lscr1; diff --git a/drivers/video/pxa.c b/drivers/video/pxa.c index b4ce3a1..d6d11ae 100644 --- a/drivers/video/pxa.c +++ b/drivers/video/pxa.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include @@ -499,6 +500,8 @@ fbi->mode = pdata->mode; fbi->regs = dev_request_mem_region(dev, 0); + if (IS_ERR(fbi->regs)) + return PTR_ERR(fbi->regs); fbi->dev = dev; fbi->lcd_power = pdata->lcd_power; diff --git a/drivers/watchdog/im28wd.c b/drivers/watchdog/im28wd.c index dd66e12..3e73ecd 100644 --- a/drivers/watchdog/im28wd.c +++ b/drivers/watchdog/im28wd.c @@ -22,6 +22,7 @@ #include #include #include +#include #define MXS_RTC_CTRL 0x0 #define MXS_RTC_SET_ADDR 0x4 @@ -186,6 +187,8 @@ priv = xzalloc(sizeof(struct imx28_wd)); priv->regs = dev_request_mem_region(dev, 0); + if (IS_ERR(priv->regs)) + return PTR_ERR(priv->regs); priv->wd.set_timeout = imx28_watchdog_set_timeout; if (!(readl(priv->regs + MXS_RTC_STAT) & MXS_RTC_STAT_WD_PRESENT)) {