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[media] s5p-tv: fix error return code in mxr_acquire_video() 

Fix to return a negative error code in the vb2_dma_contig_init_ctx()
error handling case instead of 0, as done elsewhere in this function.
Also vb2_dma_contig_init_ctx() return ERR_PTR() in case of error and
never return NULL, so use IS_ERR() replace IS_ERR_OR_NULL().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Wei Yongjun 2013-05-13 01:49:13 -03:00 committed by Mauro Carvalho Chehab
parent d46a5a68b1
commit 6a2f18cf58
1 changed files with 2 additions and 1 deletions
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3
drivers/media/platform/s5p-tv/mixer_video.c
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@ -81,8 +81,9 @@ int mxr_acquire_video(struct mxr_device *mdev,
}
mdev->alloc_ctx = vb2_dma_contig_init_ctx(mdev->dev);
if (IS_ERR_OR_NULL(mdev->alloc_ctx)) {
if (IS_ERR(mdev->alloc_ctx)) {
mxr_err(mdev, "could not acquire vb2 allocator\n");
ret = PTR_ERR(mdev->alloc_ctx);
goto fail_v4l2_dev;
}