diff options
Diffstat (limited to 'sound/usb/mixer.c')
| -rw-r--r-- | sound/usb/mixer.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index d1bdb0b93b..8cc2d4937f 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -2021,6 +2021,13 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, bmaControls = ftr->bmaControls; } + if (channels > 32) { + usb_audio_info(state->chip, + "usbmixer: too many channels (%d) in unit %d\n", + channels, unitid); + return -EINVAL; + } + /* parse the source unit */ err = parse_audio_unit(state, hdr->bSourceID); if (err < 0) |