Takashi Sakamoto aea3493246 ALSA: firewire-motu: drop EPOLLOUT from poll return values as write is not supported ...

The ALSA HwDep character device of the firewire-motu driver incorrectly
returns EPOLLOUT in poll(2), even though the driver implements no operation
for write(2). This misleads userspace applications to believe write() is
allowed, potentially resulting in unnecessarily wakeups.

This issue dates back to the driver's initial code added by a commit
71c3797779 ("ALSA: firewire-motu: add hwdep interface"), and persisted
when POLLOUT was updated to EPOLLOUT by a commit a9a08845e9 ('vfs: do
bulk POLL* -> EPOLL* replacement("").').

This commit fixes the bug.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://patch.msgid.link/20250829233749.366222-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>

2025-08-30 09:32:45 +02:00

..

bebob

ALSA: firewire: bebob: Use safer strscpy() instead of strcpy()

2025-07-11 09:52:13 +02:00

dice

ALSA: firewire: dice: Use safer strscpy() instead of strcpy()

2025-07-11 09:52:27 +02:00

digi00x

ALSA: firewire: digi00x: Use safer strscpy() instead of strcpy()

2025-07-11 09:52:34 +02:00

fireface

ALSA: firewire: fireface: Use safer strscpy() instead of strcpy()

2025-07-11 09:52:40 +02:00

fireworks

ALSA: firewire: fireworks: Use safer strscpy() instead of strcpy()

2025-07-11 09:52:45 +02:00

motu

ALSA: firewire-motu: drop EPOLLOUT from poll return values as write is not supported

2025-08-30 09:32:45 +02:00

oxfw

ALSA: firewire: oxfw: Use safer strscpy() instead of strcpy()

2025-07-11 09:53:03 +02:00

tascam

ALSA: firewire: tascam: Use safer strscpy() instead of strcpy()

2025-07-11 09:53:08 +02:00

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: Avoid division by zero in apply_constraint_to_size()

2024-10-21 09:09:21 +02:00

amdtp-stream.h

Revert "ALSA: firewire-lib: obsolete workqueue for period update"

2024-07-31 11:28:13 +02:00

cmp.c

ALSA: firewire: Remove unused cmp_connection_update

2024-10-10 14:22:01 +02:00

cmp.h

ALSA: firewire: Remove unused cmp_connection_update

2024-10-10 14:22:01 +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

…

isight.c

ALSA: firewire: isight: Use safer strscpy() instead of strcpy()

2025-07-11 09:52:51 +02:00

iso-resources.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 345

2019-06-05 17:37:08 +02:00

iso-resources.h

…

Kconfig

ALSA: firewire-motu: add support for MOTU 896 mk3 FireWire and Hybrid

2024-01-29 09:04:30 +01:00

lib.c

ALSA: firewire: use 'GPL' string for module license contributed by Clemens Ladisch

2023-06-12 14:39:00 +02:00

lib.h

ALSA: firewire-lib: delete unused kernel API

2021-06-07 17:14:54 +02:00

Makefile

ALSA: firewire: Use *-y instead of *-objs in Makefile

2024-05-08 18:18:03 +02:00

packets-buffer.c

ALSA: firewire: fix a memory leak bug

2019-08-08 11:12:26 +02:00

packets-buffer.h

…