V4L/DVB (7121): Renames videobuf lock to vb_lock
This helps to identify where vb_lock is being used, and find missusages of the
locks.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c
index 907dc62..d9ce9a4 100644
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -2354,8 +2354,8 @@
BUG();
}
- mutex_lock(&fh->cap.lock);
- kfree(fh->ov.clips);
+ mutex_lock(&fh->cap.vb_lock);
+ kfree(fh->ov.clips);
fh->ov.clips = clips;
fh->ov.nclips = n;
@@ -2376,7 +2376,7 @@
bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
retval = bttv_switch_overlay(btv,fh,new);
}
- mutex_unlock(&fh->cap.lock);
+ mutex_unlock(&fh->cap.vb_lock);
return retval;
}
@@ -2576,7 +2576,7 @@
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
/* update our state informations */
- mutex_lock(&fh->cap.lock);
+ mutex_lock(&fh->cap.vb_lock);
fh->fmt = fmt;
fh->cap.field = f->fmt.pix.field;
fh->cap.last = V4L2_FIELD_NONE;
@@ -2585,7 +2585,7 @@
btv->init.fmt = fmt;
btv->init.width = f->fmt.pix.width;
btv->init.height = f->fmt.pix.height;
- mutex_unlock(&fh->cap.lock);
+ mutex_unlock(&fh->cap.vb_lock);
return 0;
}
@@ -2611,11 +2611,11 @@
unsigned int i;
struct bttv_fh *fh = priv;
- mutex_lock(&fh->cap.lock);
+ mutex_lock(&fh->cap.vb_lock);
retval = videobuf_mmap_setup(&fh->cap, gbuffers, gbufsize,
V4L2_MEMORY_MMAP);
if (retval < 0) {
- mutex_unlock(&fh->cap.lock);
+ mutex_unlock(&fh->cap.vb_lock);
return retval;
}
@@ -2627,7 +2627,7 @@
for (i = 0; i < gbuffers; i++)
mbuf->offsets[i] = i * gbufsize;
- mutex_unlock(&fh->cap.lock);
+ mutex_unlock(&fh->cap.vb_lock);
return 0;
}
#endif
@@ -2756,7 +2756,7 @@
if (!check_alloc_btres(btv, fh, RESOURCE_OVERLAY))
return -EBUSY;
- mutex_lock(&fh->cap.lock);
+ mutex_lock(&fh->cap.vb_lock);
if (on) {
fh->ov.tvnorm = btv->tvnorm;
new = videobuf_pci_alloc(sizeof(*new));
@@ -2767,7 +2767,7 @@
/* switch over */
retval = bttv_switch_overlay(btv, fh, new);
- mutex_unlock(&fh->cap.lock);
+ mutex_unlock(&fh->cap.vb_lock);
return retval;
}
@@ -2806,7 +2806,7 @@
}
/* ok, accept it */
- mutex_lock(&fh->cap.lock);
+ mutex_lock(&fh->cap.vb_lock);
btv->fbuf.base = fb->base;
btv->fbuf.fmt.width = fb->fmt.width;
btv->fbuf.fmt.height = fb->fmt.height;
@@ -2838,7 +2838,7 @@
retval = bttv_switch_overlay(btv, fh, new);
}
}
- mutex_unlock(&fh->cap.lock);
+ mutex_unlock(&fh->cap.vb_lock);
return retval;
}
@@ -3090,7 +3090,7 @@
fh->do_crop = 1;
- mutex_lock(&fh->cap.lock);
+ mutex_lock(&fh->cap.vb_lock);
if (fh->width < c.min_scaled_width) {
fh->width = c.min_scaled_width;
@@ -3108,7 +3108,7 @@
btv->init.height = c.max_scaled_height;
}
- mutex_unlock(&fh->cap.lock);
+ mutex_unlock(&fh->cap.vb_lock);
return 0;
}
@@ -3177,30 +3177,25 @@
buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
} else {
/* read() capture */
- mutex_lock(&fh->cap.lock);
+ mutex_lock(&fh->cap.vb_lock);
if (NULL == fh->cap.read_buf) {
/* need to capture a new frame */
- if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM)) {
- mutex_unlock(&fh->cap.lock);
- return POLLERR;
- }
+ if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM))
+ goto err;
fh->cap.read_buf = videobuf_pci_alloc(fh->cap.msize);
- if (NULL == fh->cap.read_buf) {
- mutex_unlock(&fh->cap.lock);
- return POLLERR;
- }
+ if (NULL == fh->cap.read_buf)
+ goto err;
fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
field = videobuf_next_field(&fh->cap);
if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
kfree (fh->cap.read_buf);
fh->cap.read_buf = NULL;
- mutex_unlock(&fh->cap.lock);
- return POLLERR;
+ goto err;
}
fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
fh->cap.read_off = 0;
}
- mutex_unlock(&fh->cap.lock);
+ mutex_unlock(&fh->cap.vb_lock);
buf = (struct bttv_buffer*)fh->cap.read_buf;
}
@@ -3209,6 +3204,9 @@
buf->vb.state == VIDEOBUF_ERROR)
return POLLIN|POLLRDNORM;
return 0;
+err:
+ mutex_unlock(&fh->cap.vb_lock);
+ return POLLERR;
}
static int bttv_open(struct inode *inode, struct file *file)