net: designware: add warning for drvdata
Instead of silently using a wrong value, check if drvdata is defined
before use.
Print a warning if there is no drvdata found.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
1 parent dc3f2c4 commit 0becc3085f4d948d8f2674b43e0e9e5f5425fcc7
@Steffen Trumtrar Steffen Trumtrar authored on 10 Jan 2018
Sascha Hauer committed on 11 Jan 2018
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drivers/net/designware.c