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| author |   Takashi Iwai <tiwai@suse.de> | 2013-02-05 14:48:03 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-02-05 14:48:03 +0100 |
| commit | 2faea5274f079630991800bd579f85a621f96ef5 (patch) | |
| tree | 4afb9032f0ae3a3e8b539e0abe40cda320989ac3 /sound/usb | |
| parent | ALSA: Replace 0 with NULL in writing-an-alsa-driver.tmpl (diff) | |
| parent | ALSA: aloop: Fix Oops while PM resume (diff) | |
| download | linux-dev-2faea5274f079630991800bd579f85a621f96ef5.tar.xz linux-dev-2faea5274f079630991800bd579f85a621f96ef5.zip | |
Merge branch 'for-linus' into for-next
Merge pending fixes that haven't pulled into 3.8.
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/mixer.c | 17 | ||||
| -rw-r--r-- | sound/usb/quirks-table.h | 2 |
2 files changed, 13 insertions, 6 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index ed4d89c8b52a..e90daf8cdaa8 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -1331,16 +1331,23 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, void } channels = (hdr->bLength - 7) / csize - 1; bmaControls = hdr->bmaControls; + if (hdr->bLength < 7 + csize) { + snd_printk(KERN_ERR "usbaudio: unit %u: " + "invalid UAC_FEATURE_UNIT descriptor\n", + unitid); + return -EINVAL; + } } else { struct uac2_feature_unit_descriptor *ftr = _ftr; csize = 4; channels = (hdr->bLength - 6) / 4 - 1; bmaControls = ftr->bmaControls; - } - - if (hdr->bLength < 7 || !csize || hdr->bLength < 7 + csize) { - snd_printk(KERN_ERR "usbaudio: unit %u: invalid UAC_FEATURE_UNIT descriptor\n", unitid); - return -EINVAL; + if (hdr->bLength < 6 + csize) { + snd_printk(KERN_ERR "usbaudio: unit %u: " + "invalid UAC_FEATURE_UNIT descriptor\n", + unitid); + return -EINVAL; + } } /* parse the source unit */ diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h index 64d25a7a4d59..820580a6dfc3 100644 --- a/sound/usb/quirks-table.h +++ b/sound/usb/quirks-table.h @@ -1750,7 +1750,7 @@ YAMAHA_DEVICE(0x7010, "UB99"), .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { /* .vendor_name = "Roland", */ /* .product_name = "A-PRO", */ - .ifnum = 1, + .ifnum = 0, .type = QUIRK_MIDI_FIXED_ENDPOINT, .data = & (const struct snd_usb_midi_endpoint_info) { .out_cables = 0x0003, |