diff mbox

ASoC: Intel: Fix conflicting pcm dev drvdata on haswell

Message ID 1467942896-40785-1-git-send-email-benzh@chromium.org (mailing list archive)
State Accepted
Commit c999675b04c146aa57f6e853a3746de979427fad
Headers show

Commit Message

Ben Zhang July 8, 2016, 1:54 a.m. UTC
soc-core sets the snd_soc_pcm_runtime->dev drvdata to
snd_soc_pcm_runtime in soc_post_component_init, and access
it in places like codec_reg_show.

hsw_pcm_open overwrites the drvdata to point to hsw_pcm_data,
confusing soc-core, and causing crashes when cat
/sys/devices/pci0000:00/INT3438:00/.../System PCM/codec_reg

This patch removes the set in hsw_pcm_open since it's no longer
used. commit 7ff9d6714a5c ("ASoC: Intel: Split hsw_pcm_data for
playback and capture") already removed all calls to
snd_soc_pcm_get_drvdata(rtd).

Signed-off-by: Ben Zhang <benzh@chromium.org>
---
 sound/soc/intel/haswell/sst-haswell-pcm.c | 1 -
 1 file changed, 1 deletion(-)
diff mbox

Patch

diff --git a/sound/soc/intel/haswell/sst-haswell-pcm.c b/sound/soc/intel/haswell/sst-haswell-pcm.c
index 994256b..3154525 100644
--- a/sound/soc/intel/haswell/sst-haswell-pcm.c
+++ b/sound/soc/intel/haswell/sst-haswell-pcm.c
@@ -819,7 +819,6 @@  static int hsw_pcm_open(struct snd_pcm_substream *substream)
 	mutex_lock(&pcm_data->mutex);
 	pm_runtime_get_sync(pdata->dev);
 
-	snd_soc_pcm_set_drvdata(rtd, pcm_data);
 	pcm_data->substream = substream;
 
 	snd_soc_set_runtime_hwparams(substream, &hsw_pcm_hardware);