kernel_optimize_test/sound
Takashi Iwai c7cd0ef66a ALSA: hda - Fix path power activation
The widget power-saving code tries to turn up/down the power of each
widget in the I/O paths that are modified at each jack plug/unplug.
The recent report revealed that the power activation leaves some
widgets unpowered after plugging.  This is because
snd_hda_activate_path() turns on path->active flag at the end of the
function while the path power management is done before that.  Then
it's regarded as if nothing is active, and the driver turns off the
power.

The fix is simply to set the flag at the beginning of the function,
before trying to power up.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=102521
Cc: <stable@vger.kernel.org> [v4.1+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-08-25 07:59:02 +02:00
..
aoa
arm
atmel
core
drivers
firewire
hda
i2c
isa
mips
oss
parisc
pci
pcmcia
ppc
sh
soc
sparc
spi
synth
usb
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c
sound_firmware.c