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drm/exynos: fix return value check in lowlevel_buffer_allocate()

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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>
This commit is contained in:
Wei Yongjun 2013-09-11 06:56:35 +08:00 committed by Inki Dae
parent fafb38374b
commit 662bb6992a
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/exynos/exynos_drm_buf.c
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@ -91,9 +91,9 @@ static int lowlevel_buffer_allocate(struct drm_device *dev,
}
buf->sgt = drm_prime_pages_to_sg(buf->pages, nr_pages);
if (!buf->sgt) {
if (IS_ERR(buf->sgt)) {
DRM_ERROR("failed to get sg table.\n");
ret = -ENOMEM;
ret = PTR_ERR(buf->sgt);
goto err_free_attrs;
}