[media] davinci: vpif: fix return value check for vb2_dma_contig_init_ctx()

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().
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Lad, Prabhakar <prabhakar.lad@ti.com>
[prabhakar.lad@ti.com: reword commit header]
Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index 2d28a96..41890a9 100644 (file)
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -1004,9 +1004,9 @@ static int vpif_reqbufs(struct file *file, void *priv,
 
        /* Initialize videobuf2 queue as per the buffer type */
        common->alloc_ctx = vb2_dma_contig_init_ctx(vpif_dev);
-       if (!common->alloc_ctx) {
+       if (IS_ERR(common->alloc_ctx)) {
                vpif_err("Failed to get the context\n");
-               return -EINVAL;
+               return PTR_ERR(common->alloc_ctx);
        }
        q = &common->buffer_queue;
        q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;

diff --git a/drivers/media/platform/davinci/vpif_display.c b/drivers/media/platform/davinci/vpif_display.c
index 977ee43..e5109ae 100644 (file)
--- a/drivers/media/platform/davinci/vpif_display.c
+++ b/drivers/media/platform/davinci/vpif_display.c
@@ -972,9 +972,9 @@ static int vpif_reqbufs(struct file *file, void *priv,
        }
        /* Initialize videobuf2 queue as per the buffer type */
        common->alloc_ctx = vb2_dma_contig_init_ctx(vpif_dev);
-       if (!common->alloc_ctx) {
+       if (IS_ERR(common->alloc_ctx)) {
                vpif_err("Failed to get the context\n");
-               return -EINVAL;
+               return PTR_ERR(common->alloc_ctx);
        }
        q = &common->buffer_queue;
        q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;