Merged revisions 126573 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
r126573 | russell | 2008-06-30 11:05:08 -0500 (Mon, 30 Jun 2008) | 10 lines

Fix a typo in the non-DEBUG_THREADS version of the recently added DEADLOCK_AVOIDANCE()
macro.  This caused the lock to not actually be released, and as a result, not
avoid deadlocks at all.  This resolves the issues reported in the last while about
Asterisk locking up all over the place (and most commonly, in chan_iax2).

(closes issue #12927)
(closes issue #12940)
(closes issue #12925)
(potentially closes others ...)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@126574 65c4cc65-6c06-0410-ace0-fbb531ad65f3

include/asterisk/lock.h

@@ -1469,14 +1469,14 @@ static inline int _ast_rwlock_trywrlock(ast_rwlock_t *t, const char *name,
 #else /* !DEBUG_THREADS */
 
 #define	CHANNEL_DEADLOCK_AVOIDANCE(chan) \
-	ast_channel_lock(chan); \
+	ast_channel_unlock(chan); \
 	usleep(1); \
-	ast_channel_unlock(chan);
+	ast_channel_lock(chan);
 
 #define	DEADLOCK_AVOIDANCE(lock) \
-	ast_mutex_lock(lock); \
+	ast_mutex_unlock(lock); \
 	usleep(1); \
-	ast_mutex_unlock(lock);
+	ast_mutex_lock(lock);
 
 #define DLA_UNLOCK(lock)	ast_mutex_unlock(lock)