diff options
Diffstat (limited to 'sound/usb/line6/capture.c')
| -rw-r--r-- | sound/usb/line6/capture.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/sound/usb/line6/capture.c b/sound/usb/line6/capture.c index 47cfcc2ab387..21342a9dddd7 100644 --- a/sound/usb/line6/capture.c +++ b/sound/usb/line6/capture.c @@ -20,21 +20,19 @@ /* Find a free URB and submit it. + must be called in line6pcm->in.lock context */ static int submit_audio_in_urb(struct snd_line6_pcm *line6pcm) { int index; - unsigned long flags; int i, urb_size; int ret; struct urb *urb_in; - spin_lock_irqsave(&line6pcm->in.lock, flags); index = find_first_zero_bit(&line6pcm->in.active_urbs, LINE6_ISO_BUFFERS); if (index < 0 || index >= LINE6_ISO_BUFFERS) { - spin_unlock_irqrestore(&line6pcm->in.lock, flags); dev_err(line6pcm->line6->ifcdev, "no free URB found\n"); return -EINVAL; } @@ -64,7 +62,6 @@ static int submit_audio_in_urb(struct snd_line6_pcm *line6pcm) dev_err(line6pcm->line6->ifcdev, "URB in #%d submission failed (%d)\n", index, ret); - spin_unlock_irqrestore(&line6pcm->in.lock, flags); return 0; } @@ -73,15 +70,18 @@ static int submit_audio_in_urb(struct snd_line6_pcm *line6pcm) */ int line6_submit_audio_in_all_urbs(struct snd_line6_pcm *line6pcm) { - int ret, i; + unsigned long flags; + int ret = 0, i; + spin_lock_irqsave(&line6pcm->in.lock, flags); for (i = 0; i < LINE6_ISO_BUFFERS; ++i) { ret = submit_audio_in_urb(line6pcm); if (ret < 0) - return ret; + break; } - return 0; + spin_unlock_irqrestore(&line6pcm->in.lock, flags); + return ret; } /* @@ -137,7 +137,9 @@ void line6_capture_check_period(struct snd_line6_pcm *line6pcm, int length) line6pcm->in.bytes += length; if (line6pcm->in.bytes >= line6pcm->in.period) { line6pcm->in.bytes %= line6pcm->in.period; + spin_unlock(&line6pcm->in.lock); snd_pcm_period_elapsed(substream); + spin_lock(&line6pcm->in.lock); } } @@ -196,8 +198,6 @@ static void audio_in_callback(struct urb *urb) if (test_and_clear_bit(index, &line6pcm->in.unlink_urbs)) shutdown = 1; - spin_unlock_irqrestore(&line6pcm->in.lock, flags); - if (!shutdown) { submit_audio_in_urb(line6pcm); @@ -206,6 +206,8 @@ static void audio_in_callback(struct urb *urb) &line6pcm->flags)) line6_capture_check_period(line6pcm, length); } + + spin_unlock_irqrestore(&line6pcm->in.lock, flags); } /* open capture callback */ |