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staging: drm/imx: fix return value check in imx_drm_init()
authorWei Yongjun <yongjun_wei@trendmicro.com.cn>
Fri, 25 Oct 2013 09:07:18 +0000 (17:07 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 29 Oct 2013 16:05:21 +0000 (09:05 -0700)
In case of error, the function platform_device_register_simple() 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: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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