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drm/exynos: check for null in return value of dma_buf_map_attachment()

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dma_buf_map_attachment() can return NULL and valid sg as return
value. Hence the check for the returned scatter-gather must be using
the inline function IS_ERR_OR_NULL() in place of IS_ERR()

Signed-off-by: Subash Patel <subash.ramaswamy@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This commit is contained in:
Subash Patel 2012-06-25 11:22:57 -07:00 committed by Inki Dae
parent 56fb5380c7
commit 0dd3b72cc6
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/exynos/exynos_drm_dmabuf.c
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@ -214,7 +214,7 @@ struct drm_gem_object *exynos_dmabuf_prime_import(struct drm_device *drm_dev,
sgt = dma_buf_map_attachment(attach, DMA_BIDIRECTIONAL);
if (IS_ERR(sgt)) {
if (IS_ERR_OR_NULL(sgt)) {
ret = PTR_ERR(sgt);
goto err_buf_detach;
}