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ALSA: hdsp - Fix potential Oops in snd_hdsp_info_pref_sync_ref()

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Dan Carpenter reported that setting 0 to uinfo->value.enumerated.items
in snd_hdsp_info_pref_sync_ref() may lead to Oops.  This function should
return an error immediately in such a case instead.

Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2012-01-09 18:22:35 +01:00
parent 80c8a2a372
commit 9badda0a0a
1 changed files with 1 additions and 2 deletions
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3
sound/pci/rme9652/hdsp.c
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@ -2640,8 +2640,7 @@ static int snd_hdsp_info_pref_sync_ref(struct snd_kcontrol *kcontrol, struct snd
uinfo->value.enumerated.items = 3; uinfo->value.enumerated.items = 3;
break; break;
default: default:
uinfo->value.enumerated.items = 0; return -EINVAL;
break;
} }
if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)