treewide: make use of PTR_ERR_OR_ZERO
PTR_ERR_OR_ZERO is designed to replace boiler plate like:

	if (IS_ERR(x))
		return PTR_ERR(x);
	return 0;

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
1 parent 73d2e0b commit c6114a600b284d3ef8b1255e7127815c49d20c9d
@Uwe Kleine-König Uwe Kleine-König authored on 24 Jun 2020
Sascha Hauer committed on 26 Jun 2020
Showing 11 changed files
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arch/arm/boards/freescale-mx23-evk/mx23-evk.c
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arch/arm/boards/karo-tx28/tx28-stk5.c
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common/globalvar.c
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common/serdev.c
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drivers/mfd/rave-sp.c
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drivers/mtd/ubi/eba.c
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drivers/net/designware_generic.c
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drivers/pci/pci-tegra.c
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drivers/pwm/core.c
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drivers/usb/otg/otgdev.c
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drivers/watchdog/rave-sp-wdt.c