From: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
The v4l2_m2m_poll function didn't check whether q->error
was set for either of the two queues. Add support for this.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
---
drivers/media/v4l2-core/v4l2-mem2mem.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c
index d97781b8ff88..d2da5249b61b 100644
--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
+++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
@@ -638,8 +638,10 @@ __poll_t v4l2_m2m_poll(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
* means either in driver already or waiting for driver to claim it
* and start processing.
*/
- if ((!src_q->streaming || list_empty(&src_q->queued_list))
- && (!dst_q->streaming || list_empty(&dst_q->queued_list))) {
+ if ((!src_q->streaming || src_q->error ||
+ list_empty(&src_q->queued_list)) &&
+ (!dst_q->streaming || dst_q->error ||
+ list_empty(&dst_q->queued_list))) {
rc |= EPOLLERR;
goto end;
}
--
2.20.1
