---

yaml --- r: 306084 b: refs/heads/master c: bf5c7cb h: refs/heads/master v: v3
git-mirror · Mar 27, 2012 · 3a668c8 · 3a668c8
1 parent 66a237c
commit 3a668c8
Show file tree

Hide file tree

Showing 2 changed files with 6 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d0b66fdfd3c5c31764740f6ffe5a345549d6af97
+refs/heads/master: bf5c7cbb996d6af51f8cc18a30ffa426196bf840
diff --git a/trunk/drivers/media/video/videobuf2-core.c b/trunk/drivers/media/video/videobuf2-core.c
@@ -1647,6 +1647,7 @@ static int __vb2_cleanup_fileio(struct vb2_queue *q);
  */
 unsigned int vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait)
 {
+	unsigned long req_events = poll_requested_events(wait);
 	unsigned long flags;
 	unsigned int ret;
 	struct vb2_buffer *vb = NULL;
@@ -1655,12 +1656,14 @@ unsigned int vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait)
 	 * Start file I/O emulator only if streaming API has not been used yet.
 	 */
 	if (q->num_buffers == 0 && q->fileio == NULL) {
-		if (!V4L2_TYPE_IS_OUTPUT(q->type) && (q->io_modes & VB2_READ)) {
+		if (!V4L2_TYPE_IS_OUTPUT(q->type) && (q->io_modes & VB2_READ) &&
+				(req_events & (POLLIN | POLLRDNORM))) {
 			ret = __vb2_init_fileio(q, 1);
 			if (ret)
 				return POLLERR;
 		}
-		if (V4L2_TYPE_IS_OUTPUT(q->type) && (q->io_modes & VB2_WRITE)) {
+		if (V4L2_TYPE_IS_OUTPUT(q->type) && (q->io_modes & VB2_WRITE) &&
+				(req_events & (POLLOUT | POLLWRNORM))) {
 			ret = __vb2_init_fileio(q, 0);
 			if (ret)
 				return POLLERR;