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ALSA: fix possible memory leak in snd_mixer_oss_build_input() 

uinfo has been allocated in this function and should be
freed before leaving from the error handling cases.

spatch with a semantic match is used to found this problem.
(http://coccinelle.lip6.fr/)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Wei Yongjun 2012-09-02 22:10:27 +08:00 committed by Takashi Iwai
parent a03e4a66c7
commit 1f3b14072b
1 changed files with 2 additions and 0 deletions
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2
sound/core/oss/mixer_oss.c
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@ -1046,6 +1046,7 @@ static int snd_mixer_oss_build_input(struct snd_mixer_oss *mixer, struct snd_mix
if (kctl->info(kctl, uinfo)) {
up_read(&mixer->card->controls_rwsem);
kfree(uinfo);
return 0;
}
strcpy(str, ptr->name);
@ -1061,6 +1062,7 @@ static int snd_mixer_oss_build_input(struct snd_mixer_oss *mixer, struct snd_mix
uinfo->value.enumerated.item = slot.capture_item;
if (kctl->info(kctl, uinfo)) {
up_read(&mixer->card->controls_rwsem);
kfree(uinfo);
return 0;
}
if (!strcmp(uinfo->value.enumerated.name, str)) {