diff options
| author | Ard van Breemen <ard@kwaak.net> | 2019-08-02 13:52:14 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-08-06 12:52:15 +0200 |
| commit | 1b34121d9f26d272b0b2334209af6b6fc82d4bf1 (patch) | |
| tree | 71d649d08e5592cdfae0d7a0c4c014e57a7db906 /sound/usb/mixer.h | |
| parent | f7f530181461aaf6afa0b3f0be4d239dea410896 (diff) | |
| download | linux-1b34121d9f26d272b0b2334209af6b6fc82d4bf1.tar.gz linux-1b34121d9f26d272b0b2334209af6b6fc82d4bf1.tar.bz2 linux-1b34121d9f26d272b0b2334209af6b6fc82d4bf1.zip | |
ALSA: usb-audio: Skip bSynchAddress endpoint check if it is invalid
The Linux kernel assumes that get_endpoint(alts,0) and
get_endpoint(alts,1) are eachothers feedback endpoints.
To reassure that validity it will test bsynchaddress to comply with that
assumption. But if the bsyncaddress is 0 (invalid), it will flag that as
a wrong assumption and return an error.
Fix: Skip the test if bSynchAddress is 0.
Note: those with a valid bSynchAddress should have a code quirck added.
Signed-off-by: Ard van Breemen <ard@kwaak.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/mixer.h')
0 files changed, 0 insertions, 0 deletions