<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/sound/drivers, branch v6.4.3</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>Merge tag 'asoc-v6.4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next</title>
<updated>2023-04-24T13:15:31+00:00</updated>
<author>
<name>Takashi Iwai</name>
<email>tiwai@suse.de</email>
</author>
<published>2023-04-24T13:15:31+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=baa6584a24494fbbd2862270d39e61b86987cc91'/>
<id>baa6584a24494fbbd2862270d39e61b86987cc91</id>
<content type='text'>
ASoC: Updates for v6.4

The bulk of the commits here are for the conversion of drivers to use
void remove callbacks but there's a reasonable amount of other stuff
going on, the pace of development with the SOF code continues to be high
and there's a bunch of new drivers too:

 - More core cleanups from Morimto-san.
 - Update drivers to have remove() callbacks returning void, mostly
   mechanical with some substantial changes.
 - Continued feature and simplification work on SOF, including addition
   of a no-DSP mode for bringup, HDA MLink and extensions to the IPC4
   protocol.
 - Hibernation support for CS35L45.
 - More DT binding conversions.
 - Support for Cirrus Logic CS35L56, Freescale QMC, Maxim MAX98363,
   nVidia systems with MAX9809x and RT5631, Realtek RT712, Renesas R-Car
   Gen4, Rockchip RK3588 and TI TAS5733.
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
ASoC: Updates for v6.4

The bulk of the commits here are for the conversion of drivers to use
void remove callbacks but there's a reasonable amount of other stuff
going on, the pace of development with the SOF code continues to be high
and there's a bunch of new drivers too:

 - More core cleanups from Morimto-san.
 - Update drivers to have remove() callbacks returning void, mostly
   mechanical with some substantial changes.
 - Continued feature and simplification work on SOF, including addition
   of a no-DSP mode for bringup, HDA MLink and extensions to the IPC4
   protocol.
 - Hibernation support for CS35L45.
 - More DT binding conversions.
 - Support for Cirrus Logic CS35L56, Freescale QMC, Maxim MAX98363,
   nVidia systems with MAX9809x and RT5631, Realtek RT712, Renesas R-Car
   Gen4, Rockchip RK3588 and TI TAS5733.
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: portman2x4: Convert to platform remove callback returning void</title>
<updated>2023-03-20T13:07:03+00:00</updated>
<author>
<name>Uwe Kleine-König</name>
<email>u.kleine-koenig@pengutronix.de</email>
</author>
<published>2023-03-15T15:04:58+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=962bdc9645036b1300c4930e147b5e9a0c587c81'/>
<id>962bdc9645036b1300c4930e147b5e9a0c587c81</id>
<content type='text'>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König &lt;u.kleine-koenig@pengutronix.de&gt;
Acked-by: Takashi Iwai &lt;tiwai@suse.de&gt;
Acked-by: Nicolas Ferre &lt;nicolas.ferre@microchip.com&gt;
Link: https://lore.kernel.org/r/20230315150745.67084-7-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König &lt;u.kleine-koenig@pengutronix.de&gt;
Acked-by: Takashi Iwai &lt;tiwai@suse.de&gt;
Acked-by: Nicolas Ferre &lt;nicolas.ferre@microchip.com&gt;
Link: https://lore.kernel.org/r/20230315150745.67084-7-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: mts64: Convert to platform remove callback returning void</title>
<updated>2023-03-20T13:07:02+00:00</updated>
<author>
<name>Uwe Kleine-König</name>
<email>u.kleine-koenig@pengutronix.de</email>
</author>
<published>2023-03-15T15:04:57+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=5909d9e5b6c927ea91ace61365049a2f365a7d7e'/>
<id>5909d9e5b6c927ea91ace61365049a2f365a7d7e</id>
<content type='text'>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König &lt;u.kleine-koenig@pengutronix.de&gt;
Acked-by: Takashi Iwai &lt;tiwai@suse.de&gt;
Acked-by: Nicolas Ferre &lt;nicolas.ferre@microchip.com&gt;
Link: https://lore.kernel.org/r/20230315150745.67084-6-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König &lt;u.kleine-koenig@pengutronix.de&gt;
Acked-by: Takashi Iwai &lt;tiwai@suse.de&gt;
Acked-by: Nicolas Ferre &lt;nicolas.ferre@microchip.com&gt;
Link: https://lore.kernel.org/r/20230315150745.67084-6-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: portman2x4: remove unused portman_read_command,data functions</title>
<updated>2023-03-19T08:10:51+00:00</updated>
<author>
<name>Tom Rix</name>
<email>trix@redhat.com</email>
</author>
<published>2023-03-18T13:52:29+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=6aa9b1d071bf62e7489601f57a13da55b1a96add'/>
<id>6aa9b1d071bf62e7489601f57a13da55b1a96add</id>
<content type='text'>
clang with W=1 reports
sound/drivers/portman2x4.c:185:18: error: unused function
  'portman_read_command' [-Werror,-Wunused-function]
static inline u8 portman_read_command(struct portman *pm)
                 ^
sound/drivers/portman2x4.c:195:18: error: unused function
  'portman_read_data' [-Werror,-Wunused-function]
static inline u8 portman_read_data(struct portman *pm)
                 ^
These static functions are not used, so remove them.

Signed-off-by: Tom Rix &lt;trix@redhat.com&gt;
Link: https://lore.kernel.org/r/20230318135229.1685266-1-trix@redhat.com
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
clang with W=1 reports
sound/drivers/portman2x4.c:185:18: error: unused function
  'portman_read_command' [-Werror,-Wunused-function]
static inline u8 portman_read_command(struct portman *pm)
                 ^
sound/drivers/portman2x4.c:195:18: error: unused function
  'portman_read_data' [-Werror,-Wunused-function]
static inline u8 portman_read_data(struct portman *pm)
                 ^
These static functions are not used, so remove them.

Signed-off-by: Tom Rix &lt;trix@redhat.com&gt;
Link: https://lore.kernel.org/r/20230318135229.1685266-1-trix@redhat.com
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: mts64: fix possible null-ptr-defer in snd_mts64_interrupt</title>
<updated>2022-12-06T10:12:12+00:00</updated>
<author>
<name>Gaosheng Cui</name>
<email>cuigaosheng1@huawei.com</email>
</author>
<published>2022-12-06T06:10:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=cf2ea3c86ad90d63d1c572b43e1ca9276b0357ad'/>
<id>cf2ea3c86ad90d63d1c572b43e1ca9276b0357ad</id>
<content type='text'>
I got a null-ptr-defer error report when I do the following tests
on the qemu platform:

make defconfig and CONFIG_PARPORT=m, CONFIG_PARPORT_PC=m,
CONFIG_SND_MTS64=m

Then making test scripts:
cat&gt;test_mod1.sh&lt;&lt;EOF
modprobe snd-mts64
modprobe snd-mts64
EOF

Executing the script, perhaps several times, we will get a null-ptr-defer
report, as follow:

syzkaller:~# ./test_mod.sh
snd_mts64: probe of snd_mts64.0 failed with error -5
modprobe: ERROR: could not insert 'snd_mts64': No such device
 BUG: kernel NULL pointer dereference, address: 0000000000000000
 #PF: supervisor write access in kernel mode
 #PF: error_code(0x0002) - not-present page
 PGD 0 P4D 0
 Oops: 0002 [#1] PREEMPT SMP PTI
 CPU: 0 PID: 205 Comm: modprobe Not tainted 6.1.0-rc8-00588-g76dcd734eca2 #6
 Call Trace:
  &lt;IRQ&gt;
  snd_mts64_interrupt+0x24/0xa0 [snd_mts64]
  parport_irq_handler+0x37/0x50 [parport]
  __handle_irq_event_percpu+0x39/0x190
  handle_irq_event_percpu+0xa/0x30
  handle_irq_event+0x2f/0x50
  handle_edge_irq+0x99/0x1b0
  __common_interrupt+0x5d/0x100
  common_interrupt+0xa0/0xc0
  &lt;/IRQ&gt;
  &lt;TASK&gt;
  asm_common_interrupt+0x22/0x40
 RIP: 0010:_raw_write_unlock_irqrestore+0x11/0x30
  parport_claim+0xbd/0x230 [parport]
  snd_mts64_probe+0x14a/0x465 [snd_mts64]
  platform_probe+0x3f/0xa0
  really_probe+0x129/0x2c0
  __driver_probe_device+0x6d/0xc0
  driver_probe_device+0x1a/0xa0
  __device_attach_driver+0x7a/0xb0
  bus_for_each_drv+0x62/0xb0
  __device_attach+0xe4/0x180
  bus_probe_device+0x82/0xa0
  device_add+0x550/0x920
  platform_device_add+0x106/0x220
  snd_mts64_attach+0x2e/0x80 [snd_mts64]
  port_check+0x14/0x20 [parport]
  bus_for_each_dev+0x6e/0xc0
  __parport_register_driver+0x7c/0xb0 [parport]
  snd_mts64_module_init+0x31/0x1000 [snd_mts64]
  do_one_initcall+0x3c/0x1f0
  do_init_module+0x46/0x1c6
  load_module+0x1d8d/0x1e10
  __do_sys_finit_module+0xa2/0xf0
  do_syscall_64+0x37/0x90
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  &lt;/TASK&gt;
 Kernel panic - not syncing: Fatal exception in interrupt
 Rebooting in 1 seconds..

The mts wa not initialized during interrupt,  we add check for
mts to fix this bug.

Fixes: 68ab801e32bb ("[ALSA] Add snd-mts64 driver for ESI Miditerminal 4140")
Signed-off-by: Gaosheng Cui &lt;cuigaosheng1@huawei.com&gt;
Link: https://lore.kernel.org/r/20221206061004.1222966-1-cuigaosheng1@huawei.com
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
I got a null-ptr-defer error report when I do the following tests
on the qemu platform:

make defconfig and CONFIG_PARPORT=m, CONFIG_PARPORT_PC=m,
CONFIG_SND_MTS64=m

Then making test scripts:
cat&gt;test_mod1.sh&lt;&lt;EOF
modprobe snd-mts64
modprobe snd-mts64
EOF

Executing the script, perhaps several times, we will get a null-ptr-defer
report, as follow:

syzkaller:~# ./test_mod.sh
snd_mts64: probe of snd_mts64.0 failed with error -5
modprobe: ERROR: could not insert 'snd_mts64': No such device
 BUG: kernel NULL pointer dereference, address: 0000000000000000
 #PF: supervisor write access in kernel mode
 #PF: error_code(0x0002) - not-present page
 PGD 0 P4D 0
 Oops: 0002 [#1] PREEMPT SMP PTI
 CPU: 0 PID: 205 Comm: modprobe Not tainted 6.1.0-rc8-00588-g76dcd734eca2 #6
 Call Trace:
  &lt;IRQ&gt;
  snd_mts64_interrupt+0x24/0xa0 [snd_mts64]
  parport_irq_handler+0x37/0x50 [parport]
  __handle_irq_event_percpu+0x39/0x190
  handle_irq_event_percpu+0xa/0x30
  handle_irq_event+0x2f/0x50
  handle_edge_irq+0x99/0x1b0
  __common_interrupt+0x5d/0x100
  common_interrupt+0xa0/0xc0
  &lt;/IRQ&gt;
  &lt;TASK&gt;
  asm_common_interrupt+0x22/0x40
 RIP: 0010:_raw_write_unlock_irqrestore+0x11/0x30
  parport_claim+0xbd/0x230 [parport]
  snd_mts64_probe+0x14a/0x465 [snd_mts64]
  platform_probe+0x3f/0xa0
  really_probe+0x129/0x2c0
  __driver_probe_device+0x6d/0xc0
  driver_probe_device+0x1a/0xa0
  __device_attach_driver+0x7a/0xb0
  bus_for_each_drv+0x62/0xb0
  __device_attach+0xe4/0x180
  bus_probe_device+0x82/0xa0
  device_add+0x550/0x920
  platform_device_add+0x106/0x220
  snd_mts64_attach+0x2e/0x80 [snd_mts64]
  port_check+0x14/0x20 [parport]
  bus_for_each_dev+0x6e/0xc0
  __parport_register_driver+0x7c/0xb0 [parport]
  snd_mts64_module_init+0x31/0x1000 [snd_mts64]
  do_one_initcall+0x3c/0x1f0
  do_init_module+0x46/0x1c6
  load_module+0x1d8d/0x1e10
  __do_sys_finit_module+0xa2/0xf0
  do_syscall_64+0x37/0x90
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  &lt;/TASK&gt;
 Kernel panic - not syncing: Fatal exception in interrupt
 Rebooting in 1 seconds..

The mts wa not initialized during interrupt,  we add check for
mts to fix this bug.

Fixes: 68ab801e32bb ("[ALSA] Add snd-mts64 driver for ESI Miditerminal 4140")
Signed-off-by: Gaosheng Cui &lt;cuigaosheng1@huawei.com&gt;
Link: https://lore.kernel.org/r/20221206061004.1222966-1-cuigaosheng1@huawei.com
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: aloop: Replace runtime-&gt;status-&gt;state reference to runtime-&gt;state</title>
<updated>2022-09-27T06:47:13+00:00</updated>
<author>
<name>Takashi Iwai</name>
<email>tiwai@suse.de</email>
</author>
<published>2022-09-26T13:55:50+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=f7efa9b8a7d959813c63275b2e980de996b8e626'/>
<id>f7efa9b8a7d959813c63275b2e980de996b8e626</id>
<content type='text'>
The recent change in ALSA core allows drivers to get the current PCM
state directly from runtime object.  Replace the calls accordingly.

Reviewed-by: Jaroslav Kysela &lt;perex@perex.cz&gt;
Link: https://lore.kernel.org/r/20220926135558.26580-4-tiwai@suse.de
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The recent change in ALSA core allows drivers to get the current PCM
state directly from runtime object.  Replace the calls accordingly.

Reviewed-by: Jaroslav Kysela &lt;perex@perex.cz&gt;
Link: https://lore.kernel.org/r/20220926135558.26580-4-tiwai@suse.de
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: dummy: Add customizable volume min/max.</title>
<updated>2022-09-12T07:52:10+00:00</updated>
<author>
<name>YJ Lee</name>
<email>yunjunlee@chromium.org</email>
</author>
<published>2022-09-12T07:29:45+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=446bc11f8614449782feac1d5ff270b3f98bcdf3'/>
<id>446bc11f8614449782feac1d5ff270b3f98bcdf3</id>
<content type='text'>
Add module parameters to support customized min/max volume leveling,
which will be useful to test devices with different volume granularity.

Signed-off-by: YJ Lee &lt;yunjunlee@chromium.org&gt;
Link: https://lore.kernel.org/r/20220912072945.760949-1-yunjunlee@chromium.org
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Add module parameters to support customized min/max volume leveling,
which will be useful to test devices with different volume granularity.

Signed-off-by: YJ Lee &lt;yunjunlee@chromium.org&gt;
Link: https://lore.kernel.org/r/20220912072945.760949-1-yunjunlee@chromium.org
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: dummy: Fix trailing whitespaces.</title>
<updated>2022-09-12T07:46:22+00:00</updated>
<author>
<name>YJ Lee</name>
<email>yunjunlee@chromium.org</email>
</author>
<published>2022-09-12T07:28:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=7ae22bdf49d513b0555d25df4d361379fc8ad166'/>
<id>7ae22bdf49d513b0555d25df4d361379fc8ad166</id>
<content type='text'>
Fix checkpatch.pl ERROR: trailing whitespaces.

Signed-off-by: YJ Lee &lt;yunjunlee@chromium.org&gt;
Link: https://lore.kernel.org/r/20220912072854.760824-1-yunjunlee@chromium.org
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Fix checkpatch.pl ERROR: trailing whitespaces.

Signed-off-by: YJ Lee &lt;yunjunlee@chromium.org&gt;
Link: https://lore.kernel.org/r/20220912072854.760824-1-yunjunlee@chromium.org
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'for-linus' into for-next</title>
<updated>2022-09-06T09:04:15+00:00</updated>
<author>
<name>Takashi Iwai</name>
<email>tiwai@suse.de</email>
</author>
<published>2022-09-06T09:04:03+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=16c5cde20e304cd900371b140cd53ecafe8d3de5'/>
<id>16c5cde20e304cd900371b140cd53ecafe8d3de5</id>
<content type='text'>
Once again back-merge the 6.0-rc devel branch for further USB-audio
and HD-audio developments.

Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Once again back-merge the 6.0-rc devel branch for further USB-audio
and HD-audio developments.

Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: aloop: Fix random zeros in capture data when using jiffies timer</title>
<updated>2022-09-02T06:58:20+00:00</updated>
<author>
<name>Pattara Teerapong</name>
<email>pteerapong@chromium.org</email>
</author>
<published>2022-09-01T14:40:36+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=3e48940abee88b8dbbeeaf8a07e7b2b6be1271b3'/>
<id>3e48940abee88b8dbbeeaf8a07e7b2b6be1271b3</id>
<content type='text'>
In loopback_jiffies_timer_pos_update(), we are getting jiffies twice.
First time for playback, second time for capture. Jiffies can be updated
between these two calls and if the capture jiffies is larger, extra zeros
will be filled in the capture buffer.

Change to get jiffies once and use it for both playback and capture.

Signed-off-by: Pattara Teerapong &lt;pteerapong@chromium.org&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Link: https://lore.kernel.org/r/20220901144036.4049060-1-pteerapong@chromium.org
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
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In loopback_jiffies_timer_pos_update(), we are getting jiffies twice.
First time for playback, second time for capture. Jiffies can be updated
between these two calls and if the capture jiffies is larger, extra zeros
will be filled in the capture buffer.

Change to get jiffies once and use it for both playback and capture.

Signed-off-by: Pattara Teerapong &lt;pteerapong@chromium.org&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Link: https://lore.kernel.org/r/20220901144036.4049060-1-pteerapong@chromium.org
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
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