allocate_buffers: fix check whether we can re-allocate

Closes: #553
umlaeute · Mar 19, 2024 · b9a340e · b9a340e
1 parent 5d72c17
commit b9a340e
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/v4l2loopback.c b/v4l2loopback.c
@@ -2393,8 +2393,8 @@ static int allocate_buffers(struct v4l2_loopback_device *dev)
 		if (dev->buffer_size * dev->buffers_number == dev->imagesize)
 			return 0;
 
-		/* if there is only one writer, no problem should occur */
-		if (dev->open_count.counter == 1)
+		/* check whether the total number of readers/writers is <=1 */
+		if ((dev->ready_for_capture + dev->active_readers) <= 1)
 			free_buffers(dev);
 		else
 			return -EINVAL;