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media: au0828: stop video streaming only when last user stops

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[ Upstream commit f604f0f5af ]

If the application was streaming from both videoX and vbiX, and streaming
from videoX was stopped, then the vbi streaming also stopped.

The cause being that stop_streaming for video stopped the subdevs as well,
instead of only doing that if dev->streaming_users reached 0.

au0828_stop_vbi_streaming was also wrong since it didn't stop the subdevs
at all when dev->streaming_users reached 0.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Tested-by: Shuah Khan <shuah@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hans Verkuil
2019-04-02 03:24:15 -04:00
committed by Greg Kroah-Hartman
parent 98a3c674b1
commit ee04cef6cc
1 changed files with 8 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/media/usb/au0828/au0828-video.c
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@@ -839,9 +839,9 @@ int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
return rc;
}
v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1);
if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
v4l2_device_call_all(&dev->v4l2_dev, 0, video,
s_stream, 1);
dev->vid_timeout_running = 1;
mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
} else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
@@ -861,10 +861,11 @@ static void au0828_stop_streaming(struct vb2_queue *vq)
dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
if (dev->streaming_users-- == 1)
if (dev->streaming_users-- == 1) {
au0828_uninit_isoc(dev);
v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
}
v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
dev->vid_timeout_running = 0;
del_timer_sync(&dev->vid_timeout);
@@ -893,8 +894,10 @@ void au0828_stop_vbi_streaming(struct vb2_queue *vq)
dprintk(1, "au0828_stop_vbi_streaming called %d\n",
dev->streaming_users);
if (dev->streaming_users-- == 1)
if (dev->streaming_users-- == 1) {
au0828_uninit_isoc(dev);
v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
}
spin_lock_irqsave(&dev->slock, flags);
if (dev->isoc_ctl.vbi_buf != NULL) {