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ASoC: core: Fix pcm code debugfs error 

We can have 2 dcpm-s with the same backend and frontend name
(capture + playback pair), this causes the following debugfs error
on Intel Bay Trail systems:

[  298.969049] debugfs: Directory 'SSP2-Codec' with parent 'Baytrail Audio Port' already present!

This commit adds a ":playback" or ":capture" postfix to the debugfs dir
name fixing this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20191005212202.5206-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Hans de Goede 2019-10-05 23:22:02 +02:00 committed by Mark Brown
parent b1e620e7d3
commit 0632fa0425
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GPG Key ID: 24D68B725D5487D0
1 changed files with 10 additions and 3 deletions
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13
sound/soc/soc-pcm.c
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@ -1146,6 +1146,7 @@ static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe,
{ {
struct snd_soc_dpcm *dpcm; struct snd_soc_dpcm *dpcm;
unsigned long flags; unsigned long flags;
char *name;
/* only add new dpcms */ /* only add new dpcms */
for_each_dpcm_be(fe, stream, dpcm) { for_each_dpcm_be(fe, stream, dpcm) {
@ -1171,9 +1172,15 @@ static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe,
stream ? "<-" : "->", be->dai_link->name); stream ? "<-" : "->", be->dai_link->name);
#ifdef CONFIG_DEBUG_FS #ifdef CONFIG_DEBUG_FS
dpcm->debugfs_state = debugfs_create_dir(be->dai_link->name, name = kasprintf(GFP_KERNEL, "%s:%s", be->dai_link->name,
fe->debugfs_dpcm_root); stream ? "capture" : "playback");
debugfs_create_u32("state", 0644, dpcm->debugfs_state, &dpcm->state); if (name) {
dpcm->debugfs_state = debugfs_create_dir(name,
fe->debugfs_dpcm_root);
debugfs_create_u32("state", 0644, dpcm->debugfs_state,
&dpcm->state);
kfree(name);
}
#endif #endif
return 1; return 1;
} }