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[media] media: davinci: vpbe: fix return value check in vpbe_display_reqbufs() 

In case of error, the function vb2_dma_contig_init_ctx() 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: Prabhakar Lad <prabhakar.lad@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Wei Yongjun 2012-12-02 06:18:35 -03:00 committed by Mauro Carvalho Chehab
parent cfe9dbd8a7
commit 4d22f1086d
1 changed files with 2 additions and 2 deletions
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4
drivers/media/platform/davinci/vpbe_display.c
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@ -1393,9 +1393,9 @@ static int vpbe_display_reqbufs(struct file *file, void *priv,
}
/* Initialize videobuf queue as per the buffer type */
layer->alloc_ctx = vb2_dma_contig_init_ctx(vpbe_dev->pdev);
if (!layer->alloc_ctx) {
if (IS_ERR(layer->alloc_ctx)) {
v4l2_err(&vpbe_dev->v4l2_dev, "Failed to get the context\n");
return -EINVAL;
return PTR_ERR(layer->alloc_ctx);
}
q = &layer->buffer_queue;
memset(q, 0, sizeof(*q));