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| author | Tony Lindgren <tony@atomide.com> | 2012-09-21 13:48:01 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2012-09-21 13:48:01 -0700 |
| commit | 0c9de3c52d2baed6bc2ee44885adb418152c71c4 (patch) | |
| tree | e19ab2c41ae47250fd614418022b32aa783aa563 /sound/usb/pcm.c | |
| parent | 6bfc82ff589a00e5fbc12b958c649d703d273c86 (diff) | |
| parent | 3c7c5dab44d6c8861bc86dab924353d8d40344f8 (diff) | |
Merge branch 'for_3.7/omap5_arch_timer' of git://github.com/SantoshShilimkar/linux into devel-dt-arch-timer
Conflicts:
arch/arm/mach-omap2/timer.c
Diffstat (limited to 'sound/usb/pcm.c')
| -rw-r--r-- | sound/usb/pcm.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index fd5e982fc98..f782ce19bf5 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -1140,6 +1140,12 @@ static void retire_playback_urb(struct snd_usb_substream *subs, int processed = urb->transfer_buffer_length / stride; int est_delay; + /* ignore the delay accounting when procssed=0 is given, i.e. + * silent payloads are procssed before handling the actual data + */ + if (!processed) + return; + spin_lock_irqsave(&subs->lock, flags); est_delay = snd_usb_pcm_delay(subs, runtime->rate); /* update delay with exact number of samples played */ |