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81c254a65c
linux/sound/firewire
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Dan Carpenter 81c254a65c ALSA: fireface: fix locking bug in ff400_copy_msg_to_user() 
The ff400_copy_msg_to_user() function drops the spin lock to call
copy_to_user().  However, if the copy_to_user() fails, then it must
take the lock again before returning.  Failure to take the lock leads
to a double unlock in the caller, hwdep_read().

Fixes: acdebd8b4c ("ALSA: fireface: implement message parser for Fireface 400")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/Y8at+W/7OGvEBY8O@kili
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-01-18 17:49:48 +01:00
..
bebob ALSA: firewire: Replace runtime->status->state reference to runtime->state 2022-09-27 08:47:25 +02:00
dice sound updates for 6.2-rc1 2022-12-13 11:27:26 -08:00
digi00x ALSA: firewire-lib: obsolete return value from context payload processing layer 2023-01-12 12:14:50 +01:00
fireface ALSA: fireface: fix locking bug in ff400_copy_msg_to_user() 2023-01-18 17:49:48 +01:00
fireworks ALSA: firewire: Replace runtime->status->state reference to runtime->state 2022-09-27 08:47:25 +02:00
motu ALSA: firewire-lib: obsolete return value from context payload processing layer 2023-01-12 12:14:50 +01:00
oxfw ALSA: firewire: Replace runtime->status->state reference to runtime->state 2022-09-27 08:47:25 +02:00
tascam ALSA: firewire-lib: obsolete return value from context payload processing layer 2023-01-12 12:14:50 +01:00
amdtp-am824.c ALSA: firewire-lib: obsolete return value from context payload processing layer 2023-01-12 12:14:50 +01:00
amdtp-am824.h ALSA: firewire-lib/motu: use int type for the value of bitwise OR with enumerator-constant 2021-05-18 12:21:52 +02:00
amdtp-stream-trace.h ALSA: firewire-lib: extend tracepoints event including CYCLE_TIME of 1394 OHCI 2023-01-10 09:34:47 +01:00
amdtp-stream.c ALSA: firewire-lib: compute extra delay for runtime of PCM substream 2023-01-12 12:14:52 +01:00
amdtp-stream.h ALSA: firewire-lib: obsolete return value from context payload processing layer 2023-01-12 12:14:50 +01:00
cmp.c ALSA: firewire: fix kernel-doc 2020-07-07 12:09:32 +02:00
cmp.h ALSA: firewire-lib: split allocation of isochronous resources from establishment of connection 2019-06-17 08:18:36 +02:00
fcp.c ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction 2022-03-04 17:23:21 +01:00
fcp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
isight.c ALSA: firewire: Drop superfluous ioctl PCM ops 2019-12-11 07:25:27 +01:00
iso-resources.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 345 2019-06-05 17:37:08 +02:00
iso-resources.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig ALSA: firewire-motu: add support for MOTU Track 16 2021-11-08 13:49:27 +01:00
lib.c ALSA: firewire-lib: delete unused kernel API 2021-06-07 17:14:54 +02:00
lib.h ALSA: firewire-lib: delete unused kernel API 2021-06-07 17:14:54 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
packets-buffer.c ALSA: firewire: fix a memory leak bug 2019-08-08 11:12:26 +02:00
packets-buffer.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00