V4L/DVB: soc-camera: allow only one video queue per device
Multiple user-space application instances can open the same video device, but
it only makes sense for one of them to manage the videobuffer queue and set
video format of the device. Restrict soc-camera respectively.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/mx3_camera.c b/drivers/media/video/mx3_camera.c
index a130769..d020388 100644
--- a/drivers/media/video/mx3_camera.c
+++ b/drivers/media/video/mx3_camera.c
@@ -976,7 +976,7 @@
return ret;
}
-static int mx3_camera_reqbufs(struct soc_camera_file *icf,
+static int mx3_camera_reqbufs(struct soc_camera_device *icd,
struct v4l2_requestbuffers *p)
{
return 0;
@@ -984,9 +984,9 @@
static unsigned int mx3_camera_poll(struct file *file, poll_table *pt)
{
- struct soc_camera_file *icf = file->private_data;
+ struct soc_camera_device *icd = file->private_data;
- return videobuf_poll_stream(file, &icf->vb_vidq, pt);
+ return videobuf_poll_stream(file, &icd->vb_vidq, pt);
}
static int mx3_camera_querycap(struct soc_camera_host *ici,