adulau/aha
1
0
Fork 0
mirror of https://github.com/adulau/aha.git synced 2024-12-28 19:56:18 +00:00
Code Issues Projects Releases Packages Wiki Activity

[ALSA] Fix possible deadlocks in sequencer at removal of ports

Browse source 
Fix possible rwsem deadlocks in sequencer code at removal of
sequencer ports.  The list_lock of port group can be double
locked.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Takashi Iwai 2007-02-07 14:07:08 +01:00 committed by Jaroslav Kysela
parent 2594d96079
commit 6116ea0741
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
sound/core/seq/seq_ports.c
View file

@ -245,9 +245,9 @@ static void clear_subscriber_list(struct snd_seq_client *client,
list_del(&subs->dest_list);
else
list_del(&subs->src_list);
up_write(&agrp->list_mutex);
unsubscribe_port(c, aport, agrp, &subs->info, 1);
kfree(subs);
up_write(&agrp->list_mutex);
snd_seq_port_unlock(aport);
snd_seq_client_unlock(c);
}