Takashi Sakamoto 814952c1b1 ALSA: firewire-motu: drop EPOLLOUT from poll return values as write is not supported ... [ Upstream commit aea3493246c474bc917d124d6fb627663ab6bef0 ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>		2025-09-25 11:13:41 +02:00
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bebob
dice
digi00x
fireface
fireworks
motu
oxfw
tascam
amdtp-am824.c
amdtp-am824.h
amdtp-stream-trace.h
amdtp-stream.c
amdtp-stream.h
cmp.c
cmp.h
fcp.c
fcp.h
isight.c
iso-resources.c
iso-resources.h
Kconfig
lib.c
lib.h
Makefile
packets-buffer.c
packets-buffer.h