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>

1 files changed, 10 insertions, 10 deletions

diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c
index 1184d359e848..39c41ad97d0e 100644
--- a/drivers/media/video/saa7134/saa7134-video.c
+++ b/drivers/media/video/saa7134/saa7134-video.c
@@ -1414,21 +1414,17 @@ video_poll(struct file *file, struct poll_table_struct *wait)
                 if (!list_empty(&fh->cap.stream))
                         buf = list_entry(fh->cap.stream.next, struct videobuf_buffer, stream);
         } else {
-                mutex_lock(&fh->cap.lock);
+                mutex_lock(&fh->cap.vb_lock);
                 if (UNSET == fh->cap.read_off) {
                         /* need to capture a new frame */
-                        if (res_locked(fh->dev,RESOURCE_VIDEO)) {
-                                mutex_unlock(&fh->cap.lock);
-                                return POLLERR;
-                        }
-                        if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,fh->cap.field)) {
-                                mutex_unlock(&fh->cap.lock);
-                                return POLLERR;
-                        }
+                        if (res_locked(fh->dev,RESOURCE_VIDEO))
+                                goto err;
+                        if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,fh->cap.field))
+                                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 = fh->cap.read_buf;
         }
 
@@ -1440,6 +1436,10 @@ video_poll(struct file *file, struct poll_table_struct *wait)
             buf->state == VIDEOBUF_ERROR)
                 return POLLIN|POLLRDNORM;
         return 0;
+
+err:
+        mutex_unlock(&fh->cap.vb_lock);
+        return POLLERR;
 }
 
 static int video_release(struct inode *inode, struct file *file)