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[PATCH] lockdep: annotate sound/core/seq/seq_ports.c

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Teach special (recursive) locking code to the lock validator.  Has no effect
on non-lockdep kernels.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Jaroslav Kysela <perex@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar 2006-07-03 00:25:21 -07:00 committed by Linus Torvalds
parent 8e7795ef6b
commit d8371f0481
1 changed files with 2 additions and 2 deletions
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sound/core/seq/seq_ports.c
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@ -514,7 +514,7 @@ int snd_seq_port_connect(struct snd_seq_client *connector,
atomic_set(&subs->ref_count, 2);
down_write(&src->list_mutex);
down_write(&dest->list_mutex);
down_write_nested(&dest->list_mutex, SINGLE_DEPTH_NESTING);
exclusive = info->flags & SNDRV_SEQ_PORT_SUBS_EXCLUSIVE ? 1 : 0;
err = -EBUSY;
@ -587,7 +587,7 @@ int snd_seq_port_disconnect(struct snd_seq_client *connector,
unsigned long flags;
down_write(&src->list_mutex);
down_write(&dest->list_mutex);
down_write_nested(&dest->list_mutex, SINGLE_DEPTH_NESTING);
/* look for the connection */
list_for_each(p, &src->list_head) {