[media] ad5820: use __maybe_unused for PM functions
authorArnd Bergmann <arnd@arndb.de>
Mon, 12 Sep 2016 15:32:57 +0000 (12:32 -0300)
committerMauro Carvalho Chehab <mchehab@s-opensource.com>
Mon, 19 Sep 2016 19:25:13 +0000 (16:25 -0300)
commit37f0644f3a5648e6c081587e05df0572e33c70a6
tree9acf4209014c02fe638c25ed8114ce3c8d76bf14
parent47d8e00ca3f9269498b4333d5c787f1442ebdbb6
[media] ad5820: use __maybe_unused for PM functions

The new ad5820 driver uses #ifdef to hide the suspend/resume functions,
but gets it wrong when CONFIG_PM_SLEEP is disabled:

drivers/media/i2c/ad5820.c:286:12: error: 'ad5820_resume' defined but not used [-Werror=unused-function]
drivers/media/i2c/ad5820.c:274:12: error: 'ad5820_suspend' defined but not used [-Werror=unused-function]

This replaces the #ifdef with a __maybe_unused annotation that is
simpler and harder to get wrong, avoiding the warning.

Fixes: bee3d5115611 ("[media] ad5820: Add driver for auto-focus coil")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
drivers/media/i2c/ad5820.c