diff options
| author | Daniel Mack <daniel@zonque.org> | 2015-01-04 19:59:29 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-01-05 08:56:19 +0100 |
| commit | 49cdd5b641933fda6324fc901eaf856924ba6a27 (patch) | |
| tree | 58b313a1df09183fd4aa86f034dc5b7dbfb2da2a /sound/usb/caiaq | |
| parent | 62f64a880af2e82d1b41cb02cb43b88d30413993 (diff) | |
| download | linux-49cdd5b641933fda6324fc901eaf856924ba6a27.tar.bz2 | |
ALSA: snd-usb-caiaq: fix stream count check
Commit 897c329bc ("ALSA: usb: caiaq: check for cdev->n_streams > 1")
introduced a safety check to protect against bogus data provided by
devices. However, the n_streams variable is already divided by
CHANNELS_PER_STREAM, so the correct check is 'n_streams > 0'.
Fix this to un-break support for stereo devices.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Cc: stable@kernel.org [v3.18+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/caiaq')
| -rw-r--r-- | sound/usb/caiaq/audio.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c index 272844746135..327f8642ca80 100644 --- a/sound/usb/caiaq/audio.c +++ b/sound/usb/caiaq/audio.c @@ -816,7 +816,7 @@ int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *cdev) return -EINVAL; } - if (cdev->n_streams < 2) { + if (cdev->n_streams < 1) { dev_err(dev, "bogus number of streams: %d\n", cdev->n_streams); return -EINVAL; } |