ARM: rpc: check device_register return code in ecard_probe
authorArnd Bergmann <arnd@arndb.de>
Mon, 30 Apr 2012 16:26:01 +0000 (16:26 +0000)
committerArnd Bergmann <arnd@arndb.de>
Sun, 7 Oct 2012 08:33:09 +0000 (10:33 +0200)
commit5f07809e93b4c05516d85a3f2770b1a77115eb70
treee64dc5192285bd085ce05d371ca913ba4b69bedc
parent5063557ac0e83a52182fd0d49e83cc770e52ccd1
ARM: rpc: check device_register return code in ecard_probe

device_register is marked __must_check, so we better propagate the error
value by returning it from ecard_probe.

Without this patch, building rpc_defconfig results in:

arch/arm/mach-rpc/ecard.c: In function 'ecard_probe':
arch/arm/mach-rpc/ecard.c:963:17: warning: ignoring return value of 'device_register', declared with attribute warn_unused_result [-Wunused-result]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
arch/arm/mach-rpc/ecard.c