diff options
| author | Peter Ujfalusi <peter.ujfalusi@nokia.com> | 2010-09-16 09:26:54 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-09-16 10:17:25 +0200 |
| commit | 4437ecdc7190302ed02fb1467c116aff29c325b2 (patch) | |
| tree | 707eef4bca82a1b8f6cf84deb4b48fa575e23715 /sound/core/init.c | |
| parent | ALSA: usb-audio - Fix an unused-variable compile warning (diff) | |
| download | linux-4437ecdc7190302ed02fb1467c116aff29c325b2.tar.xz linux-4437ecdc7190302ed02fb1467c116aff29c325b2.zip | |
ALSA: core: Allow card id change to the same string
When user want to change the card id to the same string
on the card via /sys/class/sound/cardX/id, do not
report error. Instead return with success without
doing anything.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/init.c')
| -rw-r--r-- | sound/core/init.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/sound/core/init.c b/sound/core/init.c index ec4a50ce5656..2de45fbd70fb 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -607,11 +607,16 @@ card_id_store_attr(struct device *dev, struct device_attribute *attr, return -EEXIST; } for (idx = 0; idx < snd_ecards_limit; idx++) { - if (snd_cards[idx] && !strcmp(snd_cards[idx]->id, buf1)) - goto __exist; + if (snd_cards[idx] && !strcmp(snd_cards[idx]->id, buf1)) { + if (card == snd_cards[idx]) + goto __ok; + else + goto __exist; + } } strcpy(card->id, buf1); snd_info_card_id_change(card); +__ok: mutex_unlock(&snd_card_mutex); return count; |