lkml.org 
[lkml]   [2018]   [Sep]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH AUTOSEL 4.14 19/67] media: videobuf2-core: check for q->error in vb2_core_qbuf()
Date
From: Hans Verkuil <hverkuil@xs4all.nl>

[ Upstream commit b509d733d337417bcb7fa4a35be3b9a49332b724 ]

The vb2_core_qbuf() function didn't check if q->error was set. It is
checked in __buf_prepare(), but that function isn't called if the buffer
was already prepared before with VIDIOC_PREPARE_BUF.

So check it at the start of vb2_core_qbuf() as well.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
drivers/media/v4l2-core/videobuf2-core.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 2dbf632c10de..43522a09b11d 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -1373,6 +1373,11 @@ int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb)
struct vb2_buffer *vb;
int ret;

+ if (q->error) {
+ dprintk(1, "fatal error occurred on queue\n");
+ return -EIO;
+ }
+
vb = q->bufs[index];

switch (vb->state) {
--
2.17.1
\
 
 \ /
  Last update: 2018-09-07 02:39    [W:0.232 / U:6.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site