diff options
| author | Shuah Khan <shuahkh@osg.samsung.com> | 2016-02-13 02:18:03 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-03-03 14:47:17 +0300 |
| commit | 174ced212c1014cded05c35ff22a970fac3da3ca (patch) | |
| tree | 27f8ae7d26d6484c42868bda2f02a1436568df07 /drivers/media/usb/au0828 | |
| parent | b21d29e08cc3424622e0b0d800307e254951f425 (diff) | |
| download | linux-174ced212c1014cded05c35ff22a970fac3da3ca.tar.xz | |
[media] media: au0828 set ctrl_input in au0828_s_input()
dev->ctrl_input is set in vidioc_s_input() and doesn't get set in
au0828_s_input(). As a result, dev->ctrl_input is left uninitialized
until user space calls s_input.
It works correctly because the default input value is 0 and which is
what dev->ctrl_input gets initialized via kzalloc().
Change to set dev->ctrl_input in au0828_s_input(). Also optimize
vidioc_s_input() to return if the new input value is same as the
current.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/usb/au0828')
| -rw-r--r-- | drivers/media/usb/au0828/au0828-video.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c index c0839d62ff13..3832a1ceb02a 100644 --- a/drivers/media/usb/au0828/au0828-video.c +++ b/drivers/media/usb/au0828/au0828-video.c @@ -1417,9 +1417,11 @@ static void au0828_s_input(struct au0828_dev *dev, int index) default: dprintk(1, "unknown input type set [%d]\n", AUVI_INPUT(index).type); - break; + return; } + dev->ctrl_input = index; + v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, AUVI_INPUT(index).vmux, 0, 0); @@ -1458,7 +1460,10 @@ static int vidioc_s_input(struct file *file, void *priv, unsigned int index) return -EINVAL; if (AUVI_INPUT(index).type == 0) return -EINVAL; - dev->ctrl_input = index; + + if (dev->ctrl_input == index) + return 0; + au0828_s_input(dev, index); return 0; } @@ -1974,6 +1979,7 @@ int au0828_analog_register(struct au0828_dev *dev, dev->ctrl_ainput = 0; dev->ctrl_freq = 960; dev->std = V4L2_STD_NTSC_M; + /* Default input is TV Tuner */ au0828_s_input(dev, 0); mutex_init(&dev->vb_queue_lock); |