diff options
| author | Len Brown <len.brown@intel.com> | 2011-03-18 18:06:08 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-03-18 18:06:08 -0400 |
| commit | 05534c9ffc9d5d950b14de8ba49a7609dc59b0b8 (patch) | |
| tree | 65a01a1e0bc0e28c64fb5105cc763949f5412b4b /sound/usb/pcm.c | |
| parent | dd87cc53c42f3260b7eb7f60822de0fa9e58af59 (diff) | |
| parent | 589c7a39ae2f2b74fd13ae344ca1dcca61da6bca (diff) | |
Merge branch 'acpica' into release
Diffstat (limited to 'sound/usb/pcm.c')
| -rw-r--r-- | sound/usb/pcm.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 4132522ac90f..e3f680526cb5 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -361,6 +361,7 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream, } if (changed) { + mutex_lock(&subs->stream->chip->shutdown_mutex); /* format changed */ snd_usb_release_substream_urbs(subs, 0); /* influenced: period_bytes, channels, rate, format, */ @@ -368,6 +369,7 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream, params_rate(hw_params), snd_pcm_format_physical_width(params_format(hw_params)) * params_channels(hw_params)); + mutex_unlock(&subs->stream->chip->shutdown_mutex); } return ret; @@ -385,8 +387,9 @@ static int snd_usb_hw_free(struct snd_pcm_substream *substream) subs->cur_audiofmt = NULL; subs->cur_rate = 0; subs->period_bytes = 0; - if (!subs->stream->chip->shutdown) - snd_usb_release_substream_urbs(subs, 0); + mutex_lock(&subs->stream->chip->shutdown_mutex); + snd_usb_release_substream_urbs(subs, 0); + mutex_unlock(&subs->stream->chip->shutdown_mutex); return snd_pcm_lib_free_vmalloc_buffer(substream); } |