From 6b932eca796b2b80b5295abc853f56cb3f8a15f9 Mon Sep 17 00:00:00 2001
From: David Xu <davidxu@FreeBSD.org>
Date: Thu, 26 Aug 2010 07:09:48 +0000
Subject: [PATCH] Decrease rdlock count only when thread unlocked a reader
 lock.

MFC after:	3 days
---
 lib/libthr/thread/thr_rtld.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/libthr/thread/thr_rtld.c b/lib/libthr/thread/thr_rtld.c
index 4db08bd617c0..2560a941d3a8 100644
--- a/lib/libthr/thread/thr_rtld.c
+++ b/lib/libthr/thread/thr_rtld.c
@@ -149,8 +149,8 @@ _thr_rtld_lock_release(void *lock)
 	
 	state = l->lock.rw_state;
 	if (_thr_rwlock_unlock(&l->lock) == 0) {
-		curthread->rdlock_count--;
 		if ((state & URWLOCK_WRITE_OWNER) == 0) {
+			curthread->rdlock_count--;
 			THR_CRITICAL_LEAVE(curthread);
 		} else {
 			_thr_signal_unblock(curthread);