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linux/include/sound
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Takashi Iwai 3194ed4979 ALSA: hda - Fix possible race on regmap bypass flip 
HD-audio driver uses regmap cache bypass feature for reading a raw
value without the cache.  But this is racy since both the cached and
the uncached reads may occur concurrently.  The former is done via the
normal control API access while the latter comes from the proc file
read.

Even though the regmap itself has the protection against the
concurrent accesses, the flag set/reset is done without the
protection, so it may lead to inconsistent state of bypass flag that
doesn't match with the current read and occasionally result in a
kernel WARNING like:
  WARNING: CPU: 3 PID: 2731 at drivers/base/regmap/regcache.c:499 regcache_cache_only+0x78/0x93

One way to work around such a problem is to wrap with a mutex.  But in
this case, the solution is simpler: for the uncached read, we just
skip the regmap and directly calls its accessor.  The verb execution
there is protected by itself, so basically it's safe to call
individually.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=116171
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-04-21 17:59:17 +02:00
..
ac97_codec.h ASoC: ac97: add gpio chip 2015-11-18 18:08:54 +00:00
aci.h
ad1816a.h ALSA: ad1816a: Remove always NULL parameters 2015-01-02 16:26:20 +01:00
ad1843.h
adau1373.h
aess.h ASoC: TI AESS: add autogating-enable function, callable from architecture code 2013-02-10 11:22:23 -07:00
ak4xxx-adda.h
ak4113.h ALSA: ak411x: Fix race of reinit() calls 2015-01-28 22:30:18 +01:00
ak4114.h ALSA: ak411x: Fix race of reinit() calls 2015-01-28 22:30:18 +01:00
ak4117.h
ak4531_codec.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
ak4641.h
alc5623.h
asequencer.h UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00
asound.h UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00
asoundef.h
atmel-abdac.h dmaengine: dw: move dw_dmac.h to where it belongs to 2014-09-11 11:48:12 +05:30
atmel-ac97c.h dmaengine: dw: move dw_dmac.h to where it belongs to 2014-09-11 11:48:12 +05:30
compress_driver.h ALSA: compress: Pass id string to snd_compress_new 2015-11-30 11:44:59 +01:00
control.h ALSA: hda - Update to use the new jack kctls method 2015-04-27 21:37:42 +02:00
core.h ALSA: hda_intel: add card number to irq description 2016-01-12 21:05:16 +01:00
cs42l52.h ASoC: cs42l52: Make MICA/B mixer dependent on mic config 2013-11-28 10:20:51 +00:00
cs42l56.h ASoC: Add support for CS42L56 CODEC 2014-05-05 18:20:22 -07:00
cs42l73.h ASoC: cs42l73: Add platform data support for cs42l73 codec 2013-10-18 00:37:29 +01:00
cs4231-regs.h
cs4271.h ALSA: ASoC: cs4271: add optional soft reset workaround 2012-12-24 15:53:28 +00:00
cs8403.h
cs8427.h ALSA: cs8427: separate HW initialization 2014-04-03 14:59:48 +02:00
da7213.h ASoC: da7213: Add support to handle mclk data provided to driver 2015-10-07 15:11:34 +01:00
da7218.h ASoC: da7218: Add da7218 codec driver 2015-11-30 12:24:12 +00:00
da7219-aad.h ASoC: codecs: Add da7219 codec driver 2015-10-02 18:11:27 +01:00
da7219.h ASoC: da7219: Add support for 1.6V micbias level 2015-12-23 00:11:57 +00:00
da9055.h ASoC: codecs: Add DA9055 codec driver 2012-09-28 14:21:54 +01:00
designware_i2s.h ASoC: dwc: add quirk to override COMP_PARAM_1 register 2016-01-10 12:11:50 +00:00
dmaengine_pcm.h ASoC: dmaengine_pcm: Make FLAG_NO_RESIDUE internal 2015-04-27 19:26:07 +01:00
emu10k1_synth.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
emu10k1.h ALSA: emu10k1: Emu10k2 32 bit DMA mode 2015-04-29 07:27:30 +02:00
emu8000_reg.h
emu8000.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
emux_legacy.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
emux_synth.h ALSA: emux: Fix/cleanup old ifdef CONFIG_PROC_FS 2015-05-29 07:58:11 +02:00
es1688.h ALSA: es1688: Remove almost always NULL parameter 2015-01-02 16:27:03 +01:00
gus.h ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
hda_chmap.h ALSA: hda - Use snd_hdac namespace prefix for chmap exported APIs 2016-03-07 15:46:06 +01:00
hda_hwdep.h
hda_i915.h ALSA: hda - Move audio component accesses to hdac_i915.c 2015-12-10 14:41:07 +01:00
hda_register.h Merge branch 'topic/hdac' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel 2016-01-10 12:13:34 +00:00
hda_regmap.h ALSA: hda - Fix possible race on regmap bypass flip 2016-04-21 17:59:17 +02:00
hda_verbs.h ALSA: hda - Split verb definitions into sound/hda_verbs.h 2013-12-09 17:31:40 +01:00
hdaudio_ext.h ALSA: hdac: add snd_hdac_ext_bus_link_power_up_all 2016-01-10 12:02:47 +00:00
hdaudio.h ALSA: hda - Fix unexpected resume through regmap code path 2016-03-08 10:49:02 +01:00
hwdep.h ALSA: hwdep: Embed struct device 2015-02-02 14:42:42 +01:00
i2c.h ALSA: i2c: constify snd_i2c_ops structures 2015-11-30 11:40:08 +01:00
info.h ALSA: replace CONFIG_PROC_FS with CONFIG_SND_PROC_FS 2015-05-27 21:25:19 +02:00
initval.h
jack.h ALSA: jack: Allow building the jack layer without input device 2016-02-23 09:03:07 +01:00
l3.h
max9768.h
max98088.h
max98090.h ASoC:: max98090: Remove executable bit 2013-03-20 10:54:12 +01:00
max98095.h
memalloc.h ALSA: Remove memory reservation code from memalloc helper 2014-01-09 07:32:10 +01:00
minors.h
mixer_oss.h
mpu401.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
omap-hdmi-audio.h ASoC: omap-hdmi-audio: Add platform device for OMAP HDMI audio support 2014-12-01 11:09:23 +02:00
omap-pcm.h ASoC: omap-pcm: Move omap-pcm under include/sound 2014-05-26 15:32:32 +01:00
opl3.h
opl4.h
pcm_drm_eld.h ALSA: pcm: add DRM ELD helper 2015-05-22 16:01:44 +02:00
pcm_iec958.h ALSA: pcm: add IEC958 channel status helper 2015-05-22 16:01:47 +02:00
pcm_oss.h
pcm_params.h ALSA: Add params_set_format helper 2015-02-24 00:43:18 +09:00
pcm-indirect.h
pcm.h ALSA: pcm: Add snd_pcm_rate_range_to_bits() 2016-02-05 18:49:00 +00:00
pt2258.h
pxa2xx-lib.h ASoC: pxa: pxa-pcm-lib: switch over to snd-soc-dmaengine-pcm 2015-09-30 23:21:16 +01:00
rawmidi.h ALSA: rawmidi: Make snd_rawmidi_transmit() race-free 2016-02-03 14:51:28 +01:00
rt286.h ASoC: add RT286 CODEC driver 2014-07-04 18:50:51 +01:00
rt298.h ASoC: add rt298 codec driver 2015-07-09 12:00:11 +01:00
rt5640.h ASoC: rt5640: Fill up the IN3's support 2015-10-22 13:33:00 +01:00
rt5645.h ASoC: rt5645: Add jd_invert for Broadwell 2015-09-22 09:46:33 -07:00
rt5651.h ASoC: add RT5651 CODEC driver 2014-04-18 18:52:18 +01:00
rt5659.h ASoC: rt5659: add rt5659 codec driver 2015-11-18 12:55:25 +00:00
rt5670.h ASoC: rt5670: Add IRQ function 2015-03-11 12:08:20 +00:00
rt5677.h ASoC: rt5677: Add the MICBIAS VDD setting in the platform data 2015-01-08 18:36:02 +00:00
s3c24xx_uda134x.h
sb16_csp.h UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00
sb.h ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
seq_device.h ALSA: seq: Define driver object in each driver 2015-02-12 14:15:54 +01:00
seq_kernel.h ALSA: seq: Drop snd_seq_autoload_lock() and _unlock() 2015-02-12 14:42:31 +01:00
seq_midi_emul.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
seq_midi_event.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
seq_oss_legacy.h
seq_oss.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
seq_virmidi.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
sh_dac_audio.h
sh_fsi.h ASoC: fsi: cleanup sh_fsi.h 2012-12-24 15:57:20 +00:00
simple_card.h ASoC: simple-card: Add tdm slot mask support to simple-card 2015-09-16 18:00:30 +01:00
snd_wavefront.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
soc-dai.h ASoC: Support registering a DAI dynamically 2016-01-10 12:06:19 +00:00
soc-dapm.h Merge branch 'fix/intel' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel 2016-01-05 18:06:29 +00:00
soc-dpcm.h ASoC: Make soc_dpcm_debugfs_add() non-fatal 2015-04-09 11:32:29 +01:00
soc-topology.h ASoC: topology: Add FE DAI links dynamically 2016-02-15 19:38:19 +00:00
soc.h ASoC: topology: Add FE DAIs dynamically 2016-02-15 19:35:59 +00:00
soundfont.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
spear_dma.h ASoC: Update email-id of Rajeev Kumar 2015-04-28 16:31:01 +01:00
spear_spdif.h
sta32x.h ASoC: sta32x: add device tree binding. 2015-01-27 17:13:25 +00:00
sta350.h ASoC: sta350: add support for bits in miscellaneous registers 2014-05-05 12:52:59 -07:00
tas2552-plat.h ASoC: tas2552: Support TI TAS2552 Amplifier 2014-07-17 17:57:05 +01:00
tas5086.h ALSA: ASoC: add codec driver for TI TAS5086 2013-03-08 21:06:09 +08:00
tea6330t.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
timer.h ALSA: timer: Introduce disconnect op to snd_timer_instance 2016-01-21 17:51:42 +01:00
tlv320aic3x.h ASoC: tlv320aic3x: Convert mic bias to a supply widget 2013-02-04 18:35:19 +00:00
tlv320aic32x4.h ASoC: tlv320aic32x4: Add rstn gpio to platform data. 2012-11-01 14:35:56 +00:00
tlv320dac33-plat.h
tlv.h ALSA: topology: Export ID types for TLV controls. 2015-06-04 09:40:03 +01:00
tpa6130a2-plat.h
uda134x.h ASoC: uda134x: Remove is_powered_on_standby from platform data 2014-11-24 18:04:49 +00:00
uda1380.h
util_mem.h
vx_core.h ALSA: vx: Use nonatomic PCM ops 2014-09-15 15:52:03 +02:00
wavefront.h
wm0010.h
wm1250-ev1.h
wm2000.h ASoC: wm2000: Use clock API integration to configure MCLK divisor 2012-12-24 15:42:35 +00:00
wm2200.h ASoC: wm2200: Provide platform data for MICBIAS configuration 2013-02-05 15:53:07 +00:00
wm5100.h
wm8903.h
wm8904.h ASoC: wm8904: Correct number of EQ registers 2015-10-20 15:46:09 +01:00
wm8955.h
wm8960.h ASoC: wm8960: remove 'dres' field from platform data structure 2012-09-21 08:35:06 -04:00
wm8962.h ASoC: wm8962: Let CODEC driver enable and disable its own MCLK 2014-07-31 20:51:26 +01:00
wm8993.h
wm8996.h
wm9081.h
wm9090.h
wss.h ALSA: wss: Remove (almost) always NULL parameters 2015-01-02 16:30:08 +01:00