-stable review patch. If anyone has any objections, please let us know.
------------------
From: Jelle Foks <[EMAIL PROTECTED]>
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]>
Signed-off-by: Chris Wright <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
(cherry picked from commit f057131fb6eb2c45f6023e3da41ccd6e4e71aee9)
drivers/media/video/cx88/cx88-blackbird.c | 2 ++
1 file changed, 2 insertions(+)
--- linux-2.6.21.6.orig/drivers/media/video/cx88/cx88-blackbird.c
+++ linux-2.6.21.6/drivers/media/video/cx88/cx88-blackbird.c
@@ -1034,6 +1034,8 @@ static int vidioc_g_tuner (struct file *
if (unlikely(UNSET == core->tuner_type))
return -EINVAL;
+ if (0 != t->index)
+ return -EINVAL;
strcpy(t->name, "Television");
t->type = V4L2_TUNER_ANALOG_TV;
--
-
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