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

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From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>

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@xxxxxxxxxxxxxxxxx>
---
 drivers/media/platform/davinci/vpbe_display.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/davinci/vpbe_display.c b/drivers/media/platform/davinci/vpbe_display.c
index 2bfde79..e181a52 100644
--- a/drivers/media/platform/davinci/vpbe_display.c
+++ b/drivers/media/platform/davinci/vpbe_display.c
@@ -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));

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