diff options
| author |   José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
|---|---|---|
| committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
| commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
| tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/media/usb/uvc/uvc_v4l2.c | |
| parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) | |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/media/usb/uvc/uvc_v4l2.c')
| -rw-r--r-- | kernel/drivers/media/usb/uvc/uvc_v4l2.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/kernel/drivers/media/usb/uvc/uvc_v4l2.c b/kernel/drivers/media/usb/uvc/uvc_v4l2.c index c4b1ac675..2764f4360 100644 --- a/kernel/drivers/media/usb/uvc/uvc_v4l2.c +++ b/kernel/drivers/media/usb/uvc/uvc_v4l2.c @@ -483,9 +483,6 @@ static int uvc_v4l2_open(struct file *file) uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_open\n"); stream = video_drvdata(file); - if (stream->dev->state & UVC_DEV_DISCONNECTED) - return -ENODEV; - ret = usb_autopm_get_interface(stream->dev->intf); if (ret < 0) return ret; @@ -723,6 +720,18 @@ static int uvc_ioctl_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf) return uvc_queue_buffer(&stream->queue, buf); } +static int uvc_ioctl_expbuf(struct file *file, void *fh, + struct v4l2_exportbuffer *exp) +{ + struct uvc_fh *handle = fh; + struct uvc_streaming *stream = handle->stream; + + if (!uvc_has_privileges(handle)) + return -EBUSY; + + return uvc_export_buffer(&stream->queue, exp); +} + static int uvc_ioctl_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf) { struct uvc_fh *handle = fh; @@ -1478,6 +1487,7 @@ const struct v4l2_ioctl_ops uvc_ioctl_ops = { .vidioc_reqbufs = uvc_ioctl_reqbufs, .vidioc_querybuf = uvc_ioctl_querybuf, .vidioc_qbuf = uvc_ioctl_qbuf, + .vidioc_expbuf = uvc_ioctl_expbuf, .vidioc_dqbuf = uvc_ioctl_dqbuf, .vidioc_create_bufs = uvc_ioctl_create_bufs, .vidioc_streamon = uvc_ioctl_streamon, |