media/s2255drv: return if vdev not found

PATCH New Dan Carpenter 1 participant 1 message May 5, 2010 Media (V4L/DVB)

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Dan Carpenter

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2010-05-05 06:01 UTC #0 lore raw

PATCH 1/2 media/s2255drv: return if vdev not found

The original code didn't handle the case where vdev was not found so I added a check for that.

Signed-off-by Dan Carpenter <[email protected]>

drivers/media/video/s2255drv.c +5 -1

index ac9c40c..1f9a49e 100644
@@ -1716,11 +1716,15 @@ static int s2255_open(struct file *file)
 	dprintk(1, "s2255: open called (dev=%s)\n",
 		video_device_node_name(vdev));
 
-	for (i = 0; i < MAX_CHANNELS; i++)
+	for (i = 0; i < MAX_CHANNELS; i++) {
 		if (&dev->vdev[i] == vdev) {
 			cur_channel = i;
 			break;
 		}
+	}
+	if (i == MAX_CHANNELS)
+		return -ENODEV;
+
 	/*
 	 * open lock necessary to prevent multiple instances
 	 * of v4l-conf (or other programs) from simultaneously