diff options
| author | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-07-22 15:28:36 +0000 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-07-22 15:28:36 +0000 |
| commit | 864de2be6bbbffb01707d727382eda327967d167 (patch) | |
| tree | e495fa3b2b9d529c968abb0f8c8afc5e9cb45836 | |
| parent | 6c80285db2bbd7b7261fc1c10941787223acb3f4 (diff) | |
| download | mediapointer-dvb-s2-864de2be6bbbffb01707d727382eda327967d167.tar.gz mediapointer-dvb-s2-864de2be6bbbffb01707d727382eda327967d167.tar.bz2 | |
stkwebcam: Always reuse last queued buffer
From: Jaime Velasco Juan <jsagarribay@gmail.com>
This change keeps the video stream going on when the application
is slow queuing buffers, instead of spamming dmesg and hanging.
Fixes a problem with aMSN reported by Samed Beyribey <beyribey@gmail.com>
Signed-off-by: Jaime Velasco Juan <jsagarribay@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
| -rw-r--r-- | linux/drivers/media/video/stk-webcam.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/linux/drivers/media/video/stk-webcam.c b/linux/drivers/media/video/stk-webcam.c index 5daa2294d..c5f766653 100644 --- a/linux/drivers/media/video/stk-webcam.c +++ b/linux/drivers/media/video/stk-webcam.c @@ -446,18 +446,19 @@ static void stk_isoc_handler(struct urb *urb) fb->v4lbuf.bytesused = 0; fill = fb->buffer; } else if (fb->v4lbuf.bytesused == dev->frame_size) { - list_move_tail(dev->sio_avail.next, - &dev->sio_full); - wake_up(&dev->wait_frame); - if (list_empty(&dev->sio_avail)) { - (void) (printk_ratelimit() && - STK_ERROR("No buffer available\n")); - goto resubmit; + if (list_is_singular(&dev->sio_avail)) { + /* Always reuse the last buffer */ + fb->v4lbuf.bytesused = 0; + fill = fb->buffer; + } else { + list_move_tail(dev->sio_avail.next, + &dev->sio_full); + wake_up(&dev->wait_frame); + fb = list_first_entry(&dev->sio_avail, + struct stk_sio_buffer, list); + fb->v4lbuf.bytesused = 0; + fill = fb->buffer; } - fb = list_first_entry(&dev->sio_avail, - struct stk_sio_buffer, list); - fb->v4lbuf.bytesused = 0; - fill = fb->buffer; } } else { framelen -= 4; |