Takashi Iwai 07b0e5d49d ALSA: emux: Fix mutex deadlock at unloading ... The emux-synth driver has a possible AB/BA mutex deadlock at unloading the emu10k1 driver: snd_emux_free() -> snd_emux_detach_seq(): mutex_lock(&emu->register_mutex) -> snd_seq_delete_kernel_client() -> snd_seq_free_client(): mutex_lock(&register_mutex) snd_seq_release() -> snd_seq_free_client(): mutex_lock(&register_mutex) -> snd_seq_delete_all_ports() -> snd_emux_unuse(): mutex_lock(&emu->register_mutex) Basically snd_emux_detach_seq() doesn't need a protection of emu->register_mutex as it's already being unregistered. So, we can get rid of this for avoiding the deadlock. Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>		2015-04-27 14:50:39 +02:00
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emux	ALSA: emux: Fix mutex deadlock at unloading	2015-04-27 14:50:39 +02:00
Makefile	ALSA: clean up the logic for building sequencer modules	2009-05-29 11:49:42 +02:00
util_mem.c	sound: Add module.h to the previously silent sound users	2011-10-31 19:31:21 -04:00