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drm/exynos: fix return value check in lowlevel_buffer_allocate()
authorWei Yongjun <yongjun_wei@trendmicro.com.cn>
Tue, 10 Sep 2013 22:56:35 +0000 (06:56 +0800)
committerInki Dae <inki.dae@samsung.com>
Mon, 16 Sep 2013 12:57:08 +0000 (21:57 +0900)
In case of error, the function drm_prime_pages_to_sg() 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>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

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