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ALSA: asihpi - Fix potential Oops in snd_asihpi_cmode_info()

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Dan Carpenter reported that setting 0 to uinfo->value.enumerated.items
in snd_asihpi_cmode_info() 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 18:26:05 +01:00
parent 9badda0a0a
commit 74eeb141d3
1 changed files with 3 additions and 0 deletions
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3
sound/pci/asihpi/asihpi.c
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@ -2259,6 +2259,9 @@ static int snd_asihpi_cmode_info(struct snd_kcontrol *kcontrol,
valid_modes++;
}
if (!valid_modes)
return -EINVAL;
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = valid_modes;