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ARM: rpc: check device_register return code in ecard_probe

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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>
This commit is contained in:
Arnd Bergmann 2012-04-30 16:26:01 +00:00
parent 5063557ac0
commit 5f07809e93
1 changed files with 3 additions and 1 deletions
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4
arch/arm/mach-rpc/ecard.c
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@ -960,7 +960,9 @@ static int __init ecard_probe(int slot, unsigned irq, card_type_t type)
*ecp = ec; *ecp = ec;
slot_to_expcard[slot] = ec; slot_to_expcard[slot] = ec;
device_register(&ec->dev); rc = device_register(&ec->dev);
if (rc)
goto nodev;
return 0; return 0;