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172811e3a5
linux/sound/pci
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Richard Fitzgerald 172811e3a5 ALSA: hda/cs_dsp_ctl: Use private_free for control cleanup 
Use the control private_free callback to free the associated data
block. This ensures that the memory won't leak, whatever way the
control gets destroyed.

The original implementation didn't actually remove the ALSA
controls in hda_cs_dsp_control_remove(). It only freed the internal
tracking structure. This meant it was possible to remove/unload the
amp driver while leaving its ALSA controls still present in the
soundcard. Obviously attempting to access them could cause segfaults
or at least dereferencing stale pointers.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 3233b978af ("ALSA: hda: hda_cs_dsp_ctl: Add Library to support CS_DSP ALSA controls")
Link: https://lore.kernel.org/r/20240508095627.44476-1-rf@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-05-08 18:18:18 +02:00
..
ac97 ALSA: ac97: More cleanup with snd_ctl_find_id_mixer() 2024-03-04 09:22:51 +01:00
ali5451 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
asihpi ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
au88x0 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
aw2 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
ca0106 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
cs46xx ALSA: cs46xx: Simplify with snd_ctl_find_id_mixer() 2023-07-21 09:10:39 +02:00
cs5535audio ALSA: cs5535audio: Remove the redundant assignment 2022-11-07 09:16:31 +01:00
ctxfi ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
echoaudio ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
emu10k1 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
hda ALSA: hda/cs_dsp_ctl: Use private_free for control cleanup 2024-05-08 18:18:18 +02:00
ice1712 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
korg1212 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
lola ALSA: lola: Bounds check loop iterator against streams array size 2022-05-21 08:48:57 +02:00
lx6464es ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
mixart ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
nm256 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
oxygen ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
pcxhr ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
riptide ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
rme9652 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
trident ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
vx222 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
ymfpci ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
ad1889.c ALSA: ad1889: Fix the missing snd_card_free() call at probe error 2022-04-12 17:58:18 +02:00
ad1889.h
ak4531_codec.c ALSA: ak4531: Fix assignment in if condition 2021-06-09 17:29:49 +02:00
als300.c ALSA: als300: Replace with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:24 +01:00
als4000.c ALSA: als4000: Replace with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:24 +01:00
atiixp_modem.c ALSA: atiixp: Replace with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:24 +01:00
atiixp.c ALSA: atiixp: Replace with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:24 +01:00
azt3328.c ALSA: azt3328: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:25 +01:00
azt3328.h
bt87x.c ALSA: bt87x: Fix the missing snd_card_free() call at probe error 2022-04-12 17:58:36 +02:00
cmipci.c ALSA: cmipci: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:25 +01:00
cs4281.c ALSA: cs4281: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:25 +01:00
cs5530.c ALSA: cs5530: Allocate resources with device-managed APIs 2021-07-19 16:16:43 +02:00
ens1370.c ALSA: ens137x: Replace with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:24 +01:00
ens1371.c
es1938.c ALSA: es1938: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00
es1968.c ALSA: es1968: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00
fm801.c ALSA: fm801: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00
intel8x0.c ALSA: intel8x0: Replace with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:24 +01:00
intel8x0m.c ALSA: intel8x0: Replace with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:24 +01:00
Kconfig ALSA: add HAS_IOPORT dependencies 2023-05-22 16:43:47 +02:00
maestro3.c ALSA: maestro3: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00
Makefile ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
rme32.c ALSA: rme32: Convert to generic PCM copy ops 2023-08-18 12:18:21 +02:00
rme96.c ALSA: rme96: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00
sis7019.c ALSA: sis7019: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00
sis7019.h
sonicvibes.c ALSA: sonicvibes: Fix the missing snd_card_free() call at probe error 2022-04-12 17:58:33 +02:00
via82xx_modem.c ALSA: via82xx: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00
via82xx.c ALSA: via82xx: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00