diff options
| -rw-r--r-- | sound/usb/misc/ua101.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/usb/misc/ua101.c b/sound/usb/misc/ua101.c index 49b3dd8d827d..d129b42eb979 100644 --- a/sound/usb/misc/ua101.c +++ b/sound/usb/misc/ua101.c @@ -974,6 +974,13 @@ static int detect_usb_format(struct ua101 *ua) ua->capture.channels = fmt_capture->bNrChannels; ua->playback.channels = fmt_playback->bNrChannels; + if (!ua->capture.channels || !ua->playback.channels) { + dev_err(&ua->dev->dev, + "invalid channel count: capture %u, playback %u\n", + ua->capture.channels, ua->playback.channels); + return -EINVAL; + } + ua->capture.frame_bytes = fmt_capture->bSubframeSize * ua->capture.channels; ua->playback.frame_bytes = |