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| author | Takashi Iwai <tiwai@suse.de> | 2012-01-09 18:26:05 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-01-09 18:27:54 +0100 |
| commit | 74eeb141d3bdf5a9a65c84dd637c41f12c40f41c (patch) | |
| tree | 819cfbefd802e9e4c7daefd9055d59e632343228 | |
| parent | 9badda0a0afffebbe1cb30565800896534a6c5bd (diff) | |
| download | blackbird-op-linux-74eeb141d3bdf5a9a65c84dd637c41f12c40f41c.tar.gz blackbird-op-linux-74eeb141d3bdf5a9a65c84dd637c41f12c40f41c.zip | |
ALSA: asihpi - Fix potential Oops in snd_asihpi_cmode_info()
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>
| -rw-r--r-- | sound/pci/asihpi/asihpi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c index fd3926fb0a08..e8de831f98bc 100644 --- a/sound/pci/asihpi/asihpi.c +++ b/sound/pci/asihpi/asihpi.c @@ -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; |
