diff options
| -rw-r--r-- | sound/usb/mixer.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index b1c78db0d470..b004b2e63a5d 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -1307,6 +1307,17 @@ no_res_check: /* totally crap, return an error */ return -EINVAL; } + } else { + /* if the max volume is too low, it's likely a bogus range; + * here we use -96dB as the threshold + */ + if (cval->dBmax <= -9600) { + usb_audio_info(cval->head.mixer->chip, + "%d:%d: bogus dB values (%d/%d), disabling dB reporting\n", + cval->head.id, mixer_ctrl_intf(cval->head.mixer), + cval->dBmin, cval->dBmax); + cval->dBmin = cval->dBmax = 0; + } } return 0; |