[PATCH 1/6] [media] vb2: only check ret if we assigned it

From: Gustavo Padovan
Date: Wed Feb 15 2017 - 12:55:46 EST


From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxx>

Move the ret check to the right level under if (pb). It is not
used by the code before that point if pb is NULL.

Signed-off-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxx>
---
drivers/media/v4l2-core/videobuf2-core.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 7c1d390..94afbbf9 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -984,11 +984,12 @@ static int __qbuf_userptr(struct vb2_buffer *vb, const void *pb)

memset(planes, 0, sizeof(planes[0]) * vb->num_planes);
/* Copy relevant information provided by the userspace */
- if (pb)
+ if (pb) {
ret = call_bufop(vb->vb2_queue, fill_vb2_buffer,
vb, pb, planes);
- if (ret)
- return ret;
+ if (ret)
+ return ret;
+ }

for (plane = 0; plane < vb->num_planes; ++plane) {
/* Skip the plane if already verified */
@@ -1101,11 +1102,12 @@ static int __qbuf_dmabuf(struct vb2_buffer *vb, const void *pb)

memset(planes, 0, sizeof(planes[0]) * vb->num_planes);
/* Copy relevant information provided by the userspace */
- if (pb)
+ if (pb) {
ret = call_bufop(vb->vb2_queue, fill_vb2_buffer,
vb, pb, planes);
- if (ret)
- return ret;
+ if (ret)
+ return ret;
+ }

for (plane = 0; plane < vb->num_planes; ++plane) {
struct dma_buf *dbuf = dma_buf_get(planes[plane].m.fd);
--
2.9.3