diff options
| author | Andy Walls <awalls@radix.net> | 2009-01-09 22:59:27 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-03-23 14:55:26 -0700 |
| commit | 40e343208b727f5892249997691000847ec63dc3 (patch) | |
| tree | 6cfb1b4f4707118a631474fb3ad039df8100f47e | |
| parent | 8a9b7134f8c43ff0a5ad6deebf94a37d13630ef9 (diff) | |
| download | linux-stable-40e343208b727f5892249997691000847ec63dc3.tar.gz | |
V4L/DVB (10218): cx23885: Fix Oops for mixed install of analog and digital only cards
commit cd8f894eacf13996d920fdd2aef1afc55156b191 upstream.
Analog support for HVR-1250 has not been completed, but does exist for
the HVR-1800.
Since both cards use the same driver, it tries to create the analog
dev for both devices, which is not possible.
This causes a NULL error to show up in video_open and mpeg_open.
-Mark
Iterations through the cx23885_devlist must check for NULL
pointers as some supported devices only have DVB support at the moment.
Mark Jenks encoutered an Oops in a system with both an HVR-1250 and HVR-1800
installed.
-Andy
Reported-by: Mark Jenks <mjenks1968@gmail.com>
Tested-by: Mark Jenks <mjenks1968@gmail.com>
Signed-off-by: Mark Jenks <mjenks1968@gmail.com>
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/media/video/cx23885/cx23885-417.c | 3 | ||||
| -rw-r--r-- | drivers/media/video/cx23885/cx23885-video.c | 5 |
2 files changed, 5 insertions, 3 deletions
diff --git a/drivers/media/video/cx23885/cx23885-417.c b/drivers/media/video/cx23885/cx23885-417.c index 00831f3ef8f5..c38857950301 100644 --- a/drivers/media/video/cx23885/cx23885-417.c +++ b/drivers/media/video/cx23885/cx23885-417.c @@ -1585,7 +1585,8 @@ static int mpeg_open(struct inode *inode, struct file *file) lock_kernel(); list_for_each(list, &cx23885_devlist) { h = list_entry(list, struct cx23885_dev, devlist); - if (h->v4l_device->minor == minor) { + if (h->v4l_device && + h->v4l_device->minor == minor) { dev = h; break; } diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c index c742a10be5cb..0aabc53c2d68 100644 --- a/drivers/media/video/cx23885/cx23885-video.c +++ b/drivers/media/video/cx23885/cx23885-video.c @@ -730,12 +730,13 @@ static int video_open(struct inode *inode, struct file *file) lock_kernel(); list_for_each(list, &cx23885_devlist) { h = list_entry(list, struct cx23885_dev, devlist); - if (h->video_dev->minor == minor) { + if (h->video_dev && + h->video_dev->minor == minor) { dev = h; type = V4L2_BUF_TYPE_VIDEO_CAPTURE; } if (h->vbi_dev && - h->vbi_dev->minor == minor) { + h->vbi_dev->minor == minor) { dev = h; type = V4L2_BUF_TYPE_VBI_CAPTURE; } |