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path: root/drivers/media/common/saa7146_video.c
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Diffstat (limited to 'drivers/media/common/saa7146_video.c')
-rw-r--r--drivers/media/common/saa7146_video.c20
1 files changed, 1 insertions, 19 deletions
diff --git a/drivers/media/common/saa7146_video.c b/drivers/media/common/saa7146_video.c
index 0ac5c619aecf..9aafa4e969a8 100644
--- a/drivers/media/common/saa7146_video.c
+++ b/drivers/media/common/saa7146_video.c
@@ -553,8 +553,6 @@ static int vidioc_s_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *f
}
}
- mutex_lock(&dev->lock);
-
/* ok, accept it */
vv->ov_fb = *fb;
vv->ov_fmt = fmt;
@@ -563,8 +561,6 @@ static int vidioc_s_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *f
vv->ov_fb.fmt.bytesperline = vv->ov_fb.fmt.width * fmt->depth / 8;
DEB_D(("setting bytesperline to %d\n", vv->ov_fb.fmt.bytesperline));
}
-
- mutex_unlock(&dev->lock);
return 0;
}
@@ -649,8 +645,6 @@ static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *c)
return -EINVAL;
}
- mutex_lock(&dev->lock);
-
switch (ctrl->type) {
case V4L2_CTRL_TYPE_BOOLEAN:
case V4L2_CTRL_TYPE_MENU:
@@ -693,7 +687,6 @@ static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *c)
/* fixme: we can support changing VFLIP and HFLIP here... */
if (IS_CAPTURE_ACTIVE(fh) != 0) {
DEB_D(("V4L2_CID_HFLIP while active capture.\n"));
- mutex_unlock(&dev->lock);
return -EBUSY;
}
vv->hflip = c->value;
@@ -701,16 +694,13 @@ static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *c)
case V4L2_CID_VFLIP:
if (IS_CAPTURE_ACTIVE(fh) != 0) {
DEB_D(("V4L2_CID_VFLIP while active capture.\n"));
- mutex_unlock(&dev->lock);
return -EBUSY;
}
vv->vflip = c->value;
break;
default:
- mutex_unlock(&dev->lock);
return -EINVAL;
}
- mutex_unlock(&dev->lock);
if (IS_OVERLAY_ACTIVE(fh) != 0) {
saa7146_stop_preview(fh);
@@ -902,22 +892,18 @@ static int vidioc_s_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_f
err = vidioc_try_fmt_vid_overlay(file, fh, f);
if (0 != err)
return err;
- mutex_lock(&dev->lock);
fh->ov.win = f->fmt.win;
fh->ov.nclips = f->fmt.win.clipcount;
if (fh->ov.nclips > 16)
fh->ov.nclips = 16;
if (copy_from_user(fh->ov.clips, f->fmt.win.clips,
sizeof(struct v4l2_clip) * fh->ov.nclips)) {
- mutex_unlock(&dev->lock);
return -EFAULT;
}
/* fh->ov.fh is used to indicate that we have valid overlay informations, too */
fh->ov.fh = fh;
- mutex_unlock(&dev->lock);
-
/* check if our current overlay is active */
if (IS_OVERLAY_ACTIVE(fh) != 0) {
saa7146_stop_preview(fh);
@@ -976,8 +962,6 @@ static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id *id)
}
}
- mutex_lock(&dev->lock);
-
for (i = 0; i < dev->ext_vv_data->num_stds; i++)
if (*id & dev->ext_vv_data->stds[i].id)
break;
@@ -988,8 +972,6 @@ static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id *id)
found = 1;
}
- mutex_unlock(&dev->lock);
-
if (vv->ov_suspend != NULL) {
saa7146_start_preview(vv->ov_suspend);
vv->ov_suspend = NULL;
@@ -1354,7 +1336,7 @@ static int video_open(struct saa7146_dev *dev, struct file *file)
V4L2_BUF_TYPE_VIDEO_CAPTURE,
V4L2_FIELD_INTERLACED,
sizeof(struct saa7146_buf),
- file, NULL);
+ file, &dev->v4l2_lock);
return 0;
}