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authorTakashi Iwai <tiwai@suse.de>2015-06-23 11:56:22 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-07-21 10:10:01 -0700
commit08e394684b82b0987295d96201071f52504c83f5 (patch)
treee332e4c102dd80a081a4bee608fc06d169d3aa44 /sound/core
parent37100f76f93236e99a89c0f0c5531eff03920725 (diff)
ALSA: pcm: Fix pcm_class sysfs output
commit 60b93030b44a8c2cd015cebe5624fd7552ec67ec upstream. The pcm_class sysfs of each PCM substream gives only "none" since the recent code change to embed the struct device. Fix the code to point directly to the embedded device object properly. Fixes: ef46c7af93f9 ('ALSA: pcm: Embed struct device') Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/pcm.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index b25bcf5b8644..dfed728d8c87 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -1027,7 +1027,8 @@ void snd_pcm_detach_substream(struct snd_pcm_substream *substream)
static ssize_t show_pcm_class(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct snd_pcm *pcm;
+ struct snd_pcm_str *pstr = container_of(dev, struct snd_pcm_str, dev);
+ struct snd_pcm *pcm = pstr->pcm;
const char *str;
static const char *strs[SNDRV_PCM_CLASS_LAST + 1] = {
[SNDRV_PCM_CLASS_GENERIC] = "generic",
@@ -1036,8 +1037,7 @@ static ssize_t show_pcm_class(struct device *dev,
[SNDRV_PCM_CLASS_DIGITIZER] = "digitizer",
};
- if (! (pcm = dev_get_drvdata(dev)) ||
- pcm->dev_class > SNDRV_PCM_CLASS_LAST)
+ if (pcm->dev_class > SNDRV_PCM_CLASS_LAST)
str = "none";
else
str = strs[pcm->dev_class];