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| author | Henrique de Moraes Holschuh <hmh@hmh.eng.br> | 2010-02-27 18:45:29 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-15 09:06:21 -0700 |
| commit | d707522d421d10bb56c5054812eb1f53a39a5c08 (patch) | |
| tree | ba7197c1602bffd9136fc93d3a3e2c60d7fc72e3 /sound | |
| parent | f4d574122bc35f8c90effac2e3a2af2889e9ba81 (diff) | |
| download | lwn-d707522d421d10bb56c5054812eb1f53a39a5c08.tar.gz lwn-d707522d421d10bb56c5054812eb1f53a39a5c08.zip | |
thinkpad-acpi: fix ALSA callback return status
commit 88cc83772a3c7756b9f2b4ba835545ad90a08409 upstream.
Clemens Ladisch reports that thinkpad-acpi improperly implements the
ALSA API, and always returns 0 for success for the "put" callbacks
while the API requires it to return "1" when the control value has
been changed in the hardware/firmware.
Rework the volume subdriver to be able to properly implement the ALSA
API. Based on a patch by Clemens Ladisch <clemens@ladisch.de>.
This fix is also needed on 2.6.33.
Reported-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'sound')
0 files changed, 0 insertions, 0 deletions