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| author | Kirill Marinushkin <k.marinushkin@gmail.com> | 2018-01-29 06:37:55 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-22 15:45:01 +0100 |
| commit | 4c6e8dd5d2670c74669b1627eb18f6a4226993a3 (patch) | |
| tree | 9cf3590ede517a8efa689c84bff0e4730e646de7 /lib/net_utils.c | |
| parent | bc4c681fcaff86d73fe2dbda87be835d640dfa6f (diff) | |
ALSA: usb-audio: Fix UAC2 get_ctl request with a RANGE attribute
commit 447cae58cecd69392b74a4a42cd0ab9cabd816af upstream.
The layout of the UAC2 Control request and response varies depending on
the request type. With the current implementation, only the Layout 2
Parameter Block (with the 2-byte sized RANGE attribute) is handled
properly. For the Control requests with the 1-byte sized RANGE attribute
(Bass Control, Mid Control, Tremble Control), the response is parsed
incorrectly.
This commit:
* fixes the wLength field value in the request
* fixes parsing the range values from the response
Fixes: 23caaf19b11e ("ALSA: usb-mixer: Add support for Audio Class v2.0")
Signed-off-by: Kirill Marinushkin <k.marinushkin@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/net_utils.c')
0 files changed, 0 insertions, 0 deletions