diff options
| author | Misael Lopez Cruz <misael.lopez@ti.com> | 2011-05-31 09:23:16 +0100 |
|---|---|---|
| committer | Andy Green <andy.green@linaro.org> | 2011-05-31 11:04:44 +0100 |
| commit | 5ac695688903ebbfa29e0ce947bfb0d6f7bb622e (patch) | |
| tree | c598c6fd5576b176730f65a3f3eb069dcab8873f /sound | |
| parent | 49c118d819b861cf31173a28b384dd63c04c6986 (diff) | |
ASoC: McPDM: Fix race condition in playback stream shutdown
In order to safely free McPDM interface during playback
stream shutdown, it's also required to check that no new
playback streams have been opened since the time the
delayed shutdown work was scheduled and the time it got
executed. Otherwise, McPDM interface could get freed
between stream startup and hw_params calls, which could
end up crashing the system.
Change-Id: I50d5ce897b5f4684a7afe3723eb1dd90de65dacd
Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/omap/omap-mcpdm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/omap/omap-mcpdm.c b/sound/soc/omap/omap-mcpdm.c index 0dba7f0dc12..f2e6ac36f4c 100644 --- a/sound/soc/omap/omap-mcpdm.c +++ b/sound/soc/omap/omap-mcpdm.c @@ -741,7 +741,7 @@ static void playback_abe_work(struct work_struct *work) } mutex_unlock(&mcpdm->mutex); - if (!mcpdm->free && !mcpdm->ul_active) + if (!mcpdm->free && !mcpdm->ul_active && !mcpdm->dl_active) omap_mcpdm_free(mcpdm); } |