linux/sound
Takashi Iwai d94815f917 ALSA: hda - Fix endless loop of codec configure
azx_codec_configure() loops over the codecs found on the given
controller via a linked list.  The code used to work in the past, but
in the current version, this may lead to an endless loop when a codec
binding returns an error.

The culprit is that the snd_hda_codec_configure() unregisters the
device upon error, and this eventually deletes the given codec object
from the bus.  Since the list is initialized via list_del_init(), the
next object points to the same device itself.  This behavior change
was introduced at splitting the HD-audio code code, and forgotten to
adapt it here.

For fixing this bug, just use a *_safe() version of list iteration.

Fixes: d068ebc25e ("ALSA: hda - Move some codes up to hdac_bus struct")
Reported-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-06-28 12:10:05 +02:00
..
aoa
arm
atmel
core ALSA: pcm: Don't treat NULL chmap as a fatal error 2017-06-14 16:20:32 +02:00
drivers Annotation of module parameters that specify device settings 2017-05-10 19:13:03 -07:00
firewire ALSA: firewire-lib: Fix stall of process context at packet error 2017-06-19 17:47:18 +02:00
hda ALSA: hda: Fix cpu lockup when stopping the cmd dmas 2017-05-10 08:47:17 +02:00
i2c
isa Annotation of module parameters that specify device settings 2017-05-10 19:13:03 -07:00
mips ALSA: mips: avoid potential uninitialized variable use 2017-01-16 14:33:42 +01:00
oss Annotate hardware config module parameters in sound/oss/ 2017-04-20 12:02:32 +01:00
parisc
pci ALSA: hda - Fix endless loop of codec configure 2017-06-28 12:10:05 +02:00
pcmcia lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
ppc scripts/spelling.txt: add "followings" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
sh
soc Merge remote-tracking branch 'asoc/fix/rt286' into asoc-linus 2017-05-26 12:42:28 +01:00
sparc
spi
synth ALSA: emux: stop if copy_from_user() fails 2017-03-31 16:23:52 +02:00
usb ALSA: usb: Avoid VLA in mixer_us16x08.c 2017-05-31 08:46:19 +02:00
x86 drm/i915: Fix runtime PM for LPE audio 2017-05-15 14:44:11 +03:00
ac97_bus.c
Kconfig sound: Disable the build of OSS drivers 2017-05-12 09:57:20 +02:00
last.c
Makefile ALSA: add Intel HDMI LPE audio driver for BYT/CHT-T 2017-01-25 14:23:46 +01:00
sound_core.c