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misc: genwqe: fix return value check in genwqe_device_create()
authorWei Yongjun <yongjun_wei@trendmicro.com.cn>
Tue, 7 Jan 2014 08:56:35 +0000 (16:56 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 8 Jan 2014 23:22:49 +0000 (15:22 -0800)
In case of error, the function device_create_with_groups()
returns ERR_PTR() and never returns NULL. The NULL test in
the return value check should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Frank Haverkamp <haver@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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