V4L/DVB (5816): Cx88-blackbird: fix vidioc_g_tuner never ending list …

…of tuners v4l-info and other programs would loop indefinitely while querying the tuners for cx88-blackbird cards. The cause was that vidioc_g_tuner didn't return an error value for qctrl->id != 0, making the application think there is a never ending list of tuners... This patch adds the same index check as done in vidioc_g_tuner() in cx88-video. Signed-off-by: Jelle Foks <[email protected]> Signed-off-by: Michael Krufky <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
goeke · Jul 3, 2007 · f057131 · f057131
1 parent 333408f
commit f057131
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
@@ -1034,6 +1034,8 @@ static int vidioc_g_tuner (struct file *file, void *priv,
 
 	if (unlikely(UNSET == core->tuner_type))
 		return -EINVAL;
+	if (0 != t->index)
+		return -EINVAL;
 
 	strcpy(t->name, "Television");
 	t->type       = V4L2_TUNER_ANALOG_TV;