linux/sound
Takashi Iwai 97d917879d ALSA: oss: Fix potential deadlock at unregistration
We took sound_oss_mutex around the calls of unregister_sound_special()
at unregistering OSS devices.  This may, however, lead to a deadlock,
because we manage the card release via the card's device object, and
the release may happen at unregister_sound_special() call -- which
will take sound_oss_mutex again in turn.

Although the deadlock might be fixed by relaxing the rawmidi mutex in
the previous commit, it's safer to move unregister_sound_special()
calls themselves out of the sound_oss_mutex, too.  The call is
race-safe as the function has a spinlock protection by itself.

Link: https://lore.kernel.org/r/CAB7eexJP7w1B0mVgDF0dQ+gWor7UdkiwPczmL7pn91xx8xpzOA@mail.gmail.com
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20221011070147.7611-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-10-11 09:02:43 +02:00
..
ac97 ALSA: ac97: Replace sprintf() with sysfs_emit() 2022-08-02 16:03:41 +02:00
aoa ALSA: aoa: Replace sprintf() with sysfs_emit() 2022-08-02 16:03:42 +02:00
arm ASoC: pxa: ac97: use normal MMIO accessors 2022-05-07 22:55:49 +02:00
atmel
core ALSA: oss: Fix potential deadlock at unregistration 2022-10-11 09:02:43 +02:00
drivers ALSA: aloop: Replace runtime->status->state reference to runtime->state 2022-09-27 08:47:13 +02:00
firewire ALSA: firewire: Replace runtime->status->state reference to runtime->state 2022-09-27 08:47:25 +02:00
hda ASoC: Updates for v6.1 2022-10-03 16:30:42 +02:00
i2c
isa ALSA: sb: Use DIV_ROUND_UP() instead of open-coding it 2022-09-29 08:11:55 +02:00
mips
oss sound: oss: dmasound: remove software_input_volume declaration 2022-09-09 09:11:06 +02:00
parisc
pci ALSA: hda/realtek: Add Intel Reference SSID to support headset keys 2022-10-11 07:44:14 +02:00
pcmcia ALSA: pdaudiocf: Drop superfluous GFP setup 2022-08-24 08:00:26 +02:00
ppc ALSA: ppc: Switch to use for_each_child_of_node() macro 2022-09-17 10:01:04 +02:00
sh
soc ASoC: Updates for v6.1 2022-10-03 16:30:42 +02:00
sparc
spi sound:spi: remove reference to AVR32 in Atmel AT73C213 DAC driver 2022-08-03 11:11:26 +02:00
synth
usb ALSA: usb-audio: Avoid superfluous endpoint setup 2022-10-09 12:43:26 +02:00
virtio
x86 ALSA: x86: intel_hdmi_audio: use pm_runtime_resume_and_get() 2022-06-17 10:46:38 +02:00
xen xen/sndfront: use xenbus_setup_ring() and xenbus_teardown_ring() 2022-05-19 14:22:08 +02:00
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c