Commit Graph

708468 Commits

Author SHA1 Message Date
Hui Wang
75ee94b20b ALSA: hda - fix headset mic problem for Dell machines with alc274
Confirmed with Kailang of Realtek, the pin 0x19 is for Headset Mic, and
the pin 0x1a is for Headphone Mic, he suggested to apply
ALC269_FIXUP_DELL1_MIC_NO_PRESENCE to fix this problem. And we
verified applying this FIXUP can fix this problem.

Cc: <stable@vger.kernel.org>
Cc: Kailang Yang <kailang@realtek.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-11-09 08:42:27 +01:00
Guenter Roeck
7db08b2cb3
ASoC: amd: use do_div rather than 64 bit division to fix 32 bit builds
ERROR: "__aeabi_uldivmod" [sound/soc/amd/snd-soc-acp-pcm.ko] undefined!

64-bit divides require special operations to avoid build errors on 32-bit
systems.

[Reword the commit message to make it clearer - Alex]

fixes: 61add81479 (ASoC: amd: Report accurate hw_ptr during dma)
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/678919
Reviewed-by: Jason Clinton <jclinton@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/681618
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:42:17 +00:00
Andrew F. Davis
8adc430603
ASoC: cs42l56: Fix reset GPIO name in example DT binding
The binding states the reset GPIO property shall be named
"cirrus,gpio-nreset" and this is what the driver looks for,
but the example uses "gpio-reset". Fix this here.

Fixes: 3bb40619ac ("ASoC: cs42l56: bindings: sound: Add bindings for CS42L56 CODEC")

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:42:03 +00:00
oder_chiou@realtek.com
e9c50aa6bd
ASoC: rt5514-spi: check irq status to schedule data copy in resume function
For wake on voice use case, we need to copy data from DSP buffer
to PCM stream when system wakes up by voice. However the edge
triggered IRQ could be missed when system wakes up, in that case
the irq function will not be called. If the substream was constructed
beforce suspend, we will schedule data copy in resume function.

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:29:09 +00:00
oder_chiou@realtek.com
58f1c07d23
ASoC: rt5514: Voice wakeup support.
If the rt5514 Wake on Voice device is opened while suspended, it will
be able to wake up the system when a voice command is detected.
This patch also supports user-space policy to override wakeup behavior
by /sys/bus/spi/drivers/rt5514/spi2.0/power/wakeup.

Signed-off-by: Chinyue Chen <chinyue@chromium.org>
Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:29:05 +00:00
Gustavo A. R. Silva
9d94305a7d
ASoC: wm8994: mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 402005
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:28:31 +00:00
Gustavo A. R. Silva
cdf45e49ad
ASoC: wm8993: mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 115168
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:28:27 +00:00
Gustavo A. R. Silva
b0e92b515e
ASoC: wm8753: mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 146568
Addresses-Coverity-ID: 146569
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:28:23 +00:00
Gustavo A. R. Silva
402954f8e5
ASoC: tpa6130a2: mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 115164
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:28:15 +00:00
Gustavo A. R. Silva
09fc38c1af
ASoC: tlv320dac31xx: mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1195220
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:28:06 +00:00
Gustavo A. R. Silva
a47043ec35
ASoC: tlv320aic23: mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 146566
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:28:01 +00:00
Gustavo A. R. Silva
dc10622bb3
ASoC: msm8916-wcd-analog: mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1397957
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:27:44 +00:00
Kuninori Morimoto
e07bd30bb8
ASoC: add snd_soc_dapm_kcontrol_component()
snd_soc_dapm_kcontrol_codec() (= for Codec) will be removed soon.
This patch Component version of it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:19:39 +00:00
Kuninori Morimoto
474db2c999
ASoC: add snd_soc_component_cache_sync()
snd_soc_cache_sync() (= for Codec) will be removed soon.
This patch Component version of it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:19:38 +00:00
Kuninori Morimoto
10e079d987
ASoC: add snd_soc_component_xxx_bias_level()
snd_soc_codec_xxx_bias_level() (= for Codec) will be removed soon.
This patch Component version of it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:19:37 +00:00
Kuninori Morimoto
738b49efe6
ASoC: add snd_soc_component_read32
Current codec drivers are using snd_soc_read(). It will be replaced
into snd_soc_component_read(), but these 2 are using different style.
For example, it will be

	- val = snd_soc_read(xxx, reg);
	+ ret = snd_soc_component_read(xxx, reg, &val);
	+ if (ret < 0) {
	+	...
	+ }

To more smooth replace, let's add snd_soc_component_read32
which is copied from snd_soc_read()

	- val = snd_soc_read(xxx, reg);
	+ val = snd_soc_component_read32(xxx, reg);

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 21:19:36 +00:00
Subhransu S. Prusty
1c0a7de226
ASoC: hdac_hdmi: Fix possible memory leak on parse and map nid failure
During failure, widgets in cvt_list and pin_list are not freed. So fix
the possible memory leak by freeing them when failure occurs.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 18:58:29 +00:00
Subhransu S. Prusty
eb50fa1739
ASoC: hdac_hdmi: Fix possible NULL pointer dereference
Pointers hdac_hdmi_pcm and hda_device_id can be NULL, so add check for
valid pointer to avoid NULL pointer dereference.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 18:58:24 +00:00
Subhransu S. Prusty
70e97a2d9c
ASoC: hdac_hdmi: Fix static checker warning for sprintf usage
Use snprintf instead of sprintf to shut the warning.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 18:58:20 +00:00
Sriram Periyasamy
d956147473
ASoC: Intel: Skylake: Add dynamic module id support
Module id is a property of firmware manifest and can vary between
platforms so use the uuid instead of module id for pins.

Signed-off-by: Sriram Periyasamy <sriramx.periyasamy@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 18:58:16 +00:00
Sriram Periyasamy
22ebd6666e
ASoC: Intel: Skylake: Optimize UUID handling to fill pin info
Modify skl_tplg_get_uuid() to copy just UUID rather than only
for module UUID and skl_tplg_fill_pin() to fill the pin info
which can include UUID token also.

Signed-off-by: Sriram Periyasamy <sriramx.periyasamy@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 18:58:12 +00:00
Pankaj Bharadiya
3b47c9dc75
ASoC: Intel: Skylake: Check for NHLT ACPI header signature
In certain buggy BIOS acpi_evaluate_dsm() may not return the correct
NHLT table, so check the NHLT table header signature before accessing
it.

Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 18:56:21 +00:00
Pankaj Bharadiya
f8e0665211
ASoC: Intel: Skylake: Fix uuid_module memory leak in failure case
In the loop that adds the uuid_module to the uuid_list list, allocated
memory is not properly freed in the error path free uuid_list whenever
any of the memory allocation in the loop fails to avoid memory leak.

Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 18:56:17 +00:00
Pankaj Bharadiya
0265ddd7b7
ASoC: Intel: Skylake: Fix potential NULL pointer dereference
Pointer 'mconfig' returned from call to skl_tplg_fe_get_cpr_module() can
be NULL. So check for the valid pointer before dereferencing.

Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 18:56:13 +00:00
Guneshwor Singh
da3417fe1f
ASoC: Intel: Skylake: Add channel map in updown mixer module IPC
DSP expects channel map to be sent in the IPC for updown mixer module.
So add ch_map info in updown mixer module config.

Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 18:56:09 +00:00
Guneshwor Singh
3e1b96c80f
ASoC: Intel: Skylake: Fix updown mixer module format
DSP expects length of the coefficient for updown mixer module to be 8.
So fix the max coefficient length and since we are using default values
for coefficient select which is zero, we need not explicitly initialize
it.

Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 18:56:06 +00:00
Maxime Ripard
18c1bf35c1
ASoC: sun8i-codec: Fix left and right channels inversion
Since its introduction, the codec had an inversion of the left and right
channels. It turned out to be pretty simple as it appears that the codec
doesn't have the same polarity on the LRCK signal than the I2S block.

Fix this by inverting our bit value for the LRCK inversion.

Fixes: 36c684936f ("ASoC: Add sun8i digital audio codec")
Cc: <stable@vger.kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 18:40:57 +00:00
Akshu Agrawal
bdd2a858af
ASoC: amd: Make the driver name consistent across files
This fixes the issue of driver not getting auto loaded with
MODULE_ALIAS.
find /sys/devices -name modalias -print0 | xargs -0 grep 'audio'
/sys/devices/pci0000:00/0000:00:01.0/acp_audio_dma.0.auto/modalias:platform:acp_audio_dma

TEST=boot and check for device in lsmod

[Removed yet more ChromeOS crap from the changelog -- broonie]

Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Tested-by: Jason Clinton <jclinton@chromium.org>
Reviewed-by: Jason Clinton <jclinton@chromium.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 18:32:46 +00:00
Maxime Ripard
560bfe774f
ASoC: sun8i-codec: Invert Master / Slave condition
The current code had the condition backward when checking if the codec
should be running in slave or master mode.

Fix it, and make the comment a bit more readable.

Fixes: 36c684936f ("ASoC: Add sun8i digital audio codec")
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: <stable@vger.kernel.org>
2017-11-08 18:25:48 +00:00
Arnd Bergmann
960115b842
ASoC: Intel: improve SND_SOC_INTEL_MACH dependencies
I ran into a build error with CONFIG_SND_SOC_INTEL_COMMON=m
and SND_SOC_INTEL_MACH=y:

ERROR: "snd_soc_acpi_intel_broadwell_machines" [sound/soc/intel/common/snd-soc-sst-acpi.ko] undefined!
ERROR: "snd_soc_acpi_intel_haswell_machines" [sound/soc/intel/common/snd-soc-sst-acpi.ko] undefined!
ERROR: "snd_soc_acpi_intel_cherrytrail_machines" [sound/soc/intel/atom/sst/snd-intel-sst-acpi.ko] undefined!
ERROR: "snd_soc_acpi_intel_baytrail_machines" [sound/soc/intel/atom/sst/snd-intel-sst-acpi.ko] undefined!

The problem here is that the sound/soc/intel/common/ directory
is then entered only for building modules, but the sst-acpi.o
never gets built since it depends on a built-in Kconfig symbol.

That configuration obviously makes no sense since all options
below SND_SOC_INTEL_MACH also depend on something else that
in turn depends on CONFIG_SND_SOC_INTEL_COMMON.

Adding a SND_SOC_INTEL_SST_TOPLEVEL dependency to SND_SOC_INTEL_MACH
solves the build error. I notice we can also consolidate the
'depends on SND_SOC_INTEL_MACH' lines by using an 'if' block to
simplify it further and make sure the configuration stays sane.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 18:25:00 +00:00
Arnd Bergmann
326c4aa27a
ASoC: Intel: improve DMADEVICES dependency
As pointed out by Pierre-Louis Bossart, the dependency I added
was broader than necessary, only Baytrail and Haswell/Broadwell
actually need it, the others don't.

At the same time, we have individual entries for the codecs
that all have the 'select' statement but now don't need it
any more.

Fixes: f7a88db6ff ("ASoC: Intel: fix Kconfig dependencies")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 18:24:46 +00:00
Vijendar Mukunda
61add81479
ASoC: amd: Report accurate hw_ptr during dma
Using hw register to read transmitted byte count and report
accordingly the hw pointer.

TEST=
modprobe snd-soc-acp-pcm.ko
modprobe snd-soc-acp-rt5645.ko
aplay <file>

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Signed-off-by: Akshu Agrawal <Akshu.Agrawal@amd.com>
Tested-by: Akshu Agrawal <akshu.agrawal@amd.com>
Reviewed-by: Jason Clinton <jclinton@chromium.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 16:06:49 +00:00
Oder Chiou
c4a71ff78e
ASoC: rt5514-spi: Let the buf_size to align with period_bytes
The patch lets the buf_size to align with period_bytes to prevent the
buffer reading over the real size of the DSP buffer and also avoid to
calculate the wrong size of remaining data.

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 11:26:56 +00:00
Mark Brown
da924c3a0d
ASoC: pcm512x: Scrub my work address from the driver
It's difficult for me to handle upstream mail that ends up in my work
account and this was done outside of work anyway so replace my work
address with my usual address for upstream stuff.

Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-08 10:49:57 +00:00
Takashi Iwai
132d358b18 ALSA: seq: Fix OSS sysex delivery in OSS emulation
The SYSEX event delivery in OSS sequencer emulation assumed that the
event is encoded in the variable-length data with the straight
buffering.  This was the normal behavior in the past, but during the
development, the chained buffers were introduced for carrying more
data, while the OSS code was left intact.  As a result, when a SYSEX
event with the chained buffer data is passed to OSS sequencer port,
it may end up with the wrong memory access, as if it were having a too
large buffer.

This patch addresses the bug, by applying the buffer data expansion by
the generic snd_seq_dump_var_event() helper function.

Reported-by: syzbot <syzkaller@googlegroups.com>
Reported-by: Mark Salyzyn <salyzyn@android.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-11-07 16:05:24 +01:00
Takashi Iwai
3510c7aa06 ALSA: seq: Avoid invalid lockdep class warning
The recent fix for adding rwsem nesting annotation was using the given
"hop" argument as the lock subclass key.  Although the idea itself
works, it may trigger a kernel warning like:
  BUG: looking up invalid subclass: 8
  ....
since the lockdep has a smaller number of subclasses (8) than we
currently allow for the hops there (10).

The current definition is merely a sanity check for avoiding the too
deep delivery paths, and the 8 hops are already enough.  So, as a
quick fix, just follow the max hops as same as the max lockdep
subclasses.

Fixes: 1f20f9ff57 ("ALSA: seq: Fix nested rwsem annotation for lockdep splat")
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-11-06 20:25:31 +01:00
olivier moysan
98c8dc2fd5
ASoC: stm32: spdifrx: fix control DMA error management
Fix DMA channel request error handling.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-06 15:45:45 +00:00
olivier moysan
9036e4acc8
ASoC: stm32: spdifrx: fix 16 bits capture
Change DMA bus width to manage properly 16 bits packed format.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-06 15:45:36 +00:00
Konstantinos Tsimpoukas
9718a29d40 ALSA: ice1712: define i2c eeprom addr to header file
Signed-off-by: Konstantinos Tsimpoukas <kostaslinuxxx@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-11-06 15:05:20 +01:00
Takashi Iwai
aed328fec0 Merge branch 'topic/usb-ep-check-v2' into for-next
Pull another fix of URB EP type check.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-11-06 15:04:35 +01:00
Takashi Iwai
f9a1c37229 ALSA: usx2y: Fix invalid stream URBs
The us122l driver creates URBs per the fixed endpoints, and this may
end up with URBs with inconsistent pipes when a fuzzer or a malicious
program deals with the manipulated endpoints.  It ends up with a
kernel warning like:

  usb 1-1: BOGUS urb xfer, pipe 0 != type 3
  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 24 at drivers/usb/core/urb.c:471
  usb_submit_urb+0x113e/0x1400
  Call Trace:
   usb_stream_start+0x48a/0x9f0 sound/usb/usx2y/usb_stream.c:690
   us122l_start+0x116/0x290 sound/usb/usx2y/us122l.c:365
   us122l_create_card sound/usb/usx2y/us122l.c:502
   us122l_usb_probe sound/usb/usx2y/us122l.c:588
   ....

For avoiding the bad access, this patch adds a few sanity checks of
the validity of created URBs like previous similar fixes using the new
usb_urb_ep_type_check() helper function.

Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-11-06 15:03:38 +01:00
Kuninori Morimoto
c409c2a963
ASoC: rsnd: return -EIO if rsnd_dmaen_request_channel() failed
PTR_ERR(NULL) is success. Normally when a function returns both NULL
and error pointers, it means that NULL is not a error.
But, rsnd_dmaen_request_channel() returns NULL if requested resource
was failed.
Let's return -EIO if rsnd_dmaen_request_channel() was failed on
rsnd_dmaen_nolock_start().
This patch fixes commit edce5c496c ("ASoC: rsnd: Request/Release DMA
channel eachtime")

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-11-06 11:29:44 +00:00
Takashi Iwai
9b7d869ee5 ALSA: timer: Limit max instances per timer
Currently we allow unlimited number of timer instances, and it may
bring the system hogging way too much CPU when too many timer
instances are opened and processed concurrently.  This may end up with
a soft-lockup report as triggered by syzkaller, especially when
hrtimer backend is deployed.

Since such insane number of instances aren't demanded by the normal
use case of ALSA sequencer and it merely  opens a risk only for abuse,
this patch introduces the upper limit for the number of instances per
timer backend.  As default, it's set to 1000, but for the fine-grained
timer like hrtimer, it's set to 100.

Reported-by: syzbot
Tested-by: Jérôme Glisse <jglisse@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-11-06 10:41:24 +01:00
Linus Torvalds
39dae59d66 Linux 4.14-rc8 2017-11-05 13:05:14 -08:00
Linus Torvalds
9b3499d752 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "Two fixes:

   - A PCID related revert that fixes power management and performance
     regressions.

   - The module loader robustization and sanity check commit is rather
     fresh, but it looked like a good idea to apply because of the
     hidden data corruption problem such invalid modules could cause"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/module: Detect and skip invalid relocations
  Revert "x86/mm: Stop calling leave_mm() in idle code"
2017-11-05 12:14:50 -08:00
Linus Torvalds
b21172cf6d Merge branch 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS fix from Ingo Molnar:
 "Fix an RCU warning that triggers when /dev/mcelog is used"

* 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mcelog: Get rid of RCU remnants
2017-11-05 12:12:51 -08:00
Linus Torvalds
9d9cc4aa00 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Various fixes:

   - synchronize kernel and tooling headers

   - cgroup support fix

   - two tooling fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tools/headers: Synchronize kernel ABI headers
  perf/cgroup: Fix perf cgroup hierarchy support
  perf tools: Unwind properly location after REJECT
  perf symbols: Fix memory corruption because of zero length symbols
2017-11-05 11:44:39 -08:00
Linus Torvalds
c84e6d01ee Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Ingo Molnar:
 "An irqchip driver init fix"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/irq-mvebu-gicp: Add missing spin_lock init
2017-11-05 11:43:20 -08:00
Linus Torvalds
b772b8e3ab Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core fixes from Ingo Molnar:

 - workaround for gcc asm handling

 - futex race fixes

 - objtool build warning fix

 - two watchdog fixes: a crash fix (revert) and a bug fix for
   /proc/sys/kernel/watchdog_thresh handling.

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Prevent GCC from merging annotate_unreachable(), take 2
  objtool: Resync objtool's instruction decoder source code copy with the kernel's latest version
  watchdog/hardlockup/perf: Use atomics to track in-use cpu counter
  watchdog/harclockup/perf: Revert a33d44843d ("watchdog/hardlockup/perf: Simplify deferred event destroy")
  futex: Fix more put_pi_state() vs. exit_pi_state_list() races
2017-11-05 11:02:15 -08:00
Linus Torvalds
3131dc4672 Documentation: enforcement-statement: name updates
Here are 12 patches for the
 Documentation/process/kernel-enforcement-statement.rst that add new
 names, fix the ordering of them, remove a duplicate, and remove some
 company markings that wished to be removed.
 
 All of these have passed the 0-day testing, even-though it is just a
 documentation file update :)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'enforcement-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull enforcement statement update from Greg KH:
 "Documentation: enforcement-statement: name updates

  Here are 12 patches for the kernel-enforcement-statement.rst file that
  add new names, fix the ordering of them, remove a duplicate, and
  remove some company markings that wished to be removed.

  All of these have passed the 0-day testing, even-though it is just a
  documentation file update :)"

* tag 'enforcement-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  Documentation: Add Frank Rowand to list of enforcement statement endorsers
  doc: add Willy Tarreau to the list of enforcement statement endorsers
  Documentation: Add Tim Bird to list of enforcement statement endorsers
  Documentation: Add my name to kernel enforcement statement
  Documentation: kernel-enforcement-statement.rst: proper sort names
  Documentation: Add Arm Ltd to kernel-enforcement-statement.rst
  Documentation: kernel-enforcement-statement.rst: Remove Red Hat markings
  Documentation: Add myself to the enforcement statement list
  Documentation: Sign kernel enforcement statement
  Add ack for Trond Myklebust to the enforcement statement
  Documentation: update kernel enforcement support list
  Documentation: add my name to supporters
2017-11-05 10:21:06 -08:00