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ASoC: fix debugfs directory creation bug 

Avoid creating duplicate directories by prefixing codecs and platforms
with their separate identifiers.  This avoids snd-soc-dummy (which can
appear both as a dummy platform and a dummy codec on the same card)
from clashing.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Mark Brown <broonie@linaro.org>
hifive-unleashed-5.1
Russell King 2014-06-26 15:22:50 +01:00 committed by Mark Brown
parent 7171511eae
commit e73f3de5c5
1 changed files with 24 additions and 4 deletions
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28
sound/soc/soc-core.c
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@ -270,12 +270,32 @@ static const struct file_operations codec_reg_fops = {
.llseek = default_llseek,
};
static struct dentry *soc_debugfs_create_dir(struct dentry *parent,
const char *fmt, ...)
{
struct dentry *de;
va_list ap;
char *s;
va_start(ap, fmt);
s = kvasprintf(GFP_KERNEL, fmt, ap);
va_end(ap);
if (!s)
return NULL;
de = debugfs_create_dir(s, parent);
kfree(s);
return de;
}
static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
{
struct dentry *debugfs_card_root = codec->card->debugfs_card_root;
codec->debugfs_codec_root = debugfs_create_dir(codec->name,
debugfs_card_root);
codec->debugfs_codec_root = soc_debugfs_create_dir(debugfs_card_root,
"codec:%s", codec->name);
if (!codec->debugfs_codec_root) {
dev_warn(codec->dev,
"ASoC: Failed to create codec debugfs directory\n");
@ -306,8 +326,8 @@ static void soc_init_platform_debugfs(struct snd_soc_platform *platform)
{
struct dentry *debugfs_card_root = platform->card->debugfs_card_root;
platform->debugfs_platform_root = debugfs_create_dir(platform->name,
debugfs_card_root);
platform->debugfs_platform_root = soc_debugfs_create_dir(debugfs_card_root,
"platform:%s", platform->name);
if (!platform->debugfs_platform_root) {
dev_warn(platform->dev,
"ASoC: Failed to create platform debugfs directory\n");