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From: Ingo Molnar <mingo@elte.hu>
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>
---
sound/core/seq/seq_ports.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: linux/sound/core/seq/seq_ports.c
===================================================================
--- linux.orig/sound/core/seq/seq_ports.c
+++ linux/sound/core/seq/seq_ports.c
@@ -518,7 +518,7 @@ int snd_seq_port_connect(struct snd_seq_
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;
@@ -591,7 +591,7 @@ int snd_seq_port_disconnect(struct snd_s
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) {
-
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