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authorAndy Walls <awalls@radix.net>2009-02-14 17:08:37 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:43:01 -0300
commit5811cf99df2e3c102055be3ea77508e56c9f77c6 (patch)
tree75be74b5072280edadeee2c1f6c42f5e961c208c /drivers/media/video/cx18/cx18-fileops.c
parent1a2670465ec94029e5df62e3decca9e2f7aea075 (diff)
V4L/DVB (10756): cx18: Slim down instance handling, build names from v4l2_device.name
Convert card instance handling to a lighter weight mechanism like ivtv. Also convert name strings and debug messages to use v4l2_device.name. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx18/cx18-fileops.c')
-rw-r--r--drivers/media/video/cx18/cx18-fileops.c35
1 files changed, 6 insertions, 29 deletions
diff --git a/drivers/media/video/cx18/cx18-fileops.c b/drivers/media/video/cx18/cx18-fileops.c
index 68dd50ac4bf..757982ea376 100644
--- a/drivers/media/video/cx18/cx18-fileops.c
+++ b/drivers/media/video/cx18/cx18-fileops.c
@@ -682,38 +682,15 @@ static int cx18_serialized_open(struct cx18_stream *s, struct file *filp)
int cx18_v4l2_open(struct file *filp)
{
- int res, x, y = 0;
- struct cx18 *cx = NULL;
- struct cx18_stream *s = NULL;
- int minor = video_devdata(filp)->minor;
-
- /* Find which card this open was on */
- spin_lock(&cx18_cards_lock);
- for (x = 0; cx == NULL && x < cx18_cards_active; x++) {
- /* find out which stream this open was on */
- for (y = 0; y < CX18_MAX_STREAMS; y++) {
- if (cx18_cards[x] == NULL)
- continue;
- s = &cx18_cards[x]->streams[y];
- if (s->video_dev && s->video_dev->minor == minor) {
- cx = cx18_cards[x];
- break;
- }
- }
- }
- spin_unlock(&cx18_cards_lock);
-
- if (cx == NULL) {
- /* Couldn't find a device registered
- on that minor, shouldn't happen! */
- printk(KERN_WARNING "No cx18 device found on minor %d\n",
- minor);
- return -ENXIO;
- }
+ int res;
+ struct video_device *video_dev = video_devdata(filp);
+ struct cx18_stream *s = video_get_drvdata(video_dev);
+ struct cx18 *cx = s->cx;;
mutex_lock(&cx->serialize_lock);
if (cx18_init_on_first_open(cx)) {
- CX18_ERR("Failed to initialize on minor %d\n", minor);
+ CX18_ERR("Failed to initialize on minor %d\n",
+ video_dev->minor);
mutex_unlock(&cx->serialize_lock);
return -ENXIO;
}