Unlock list mutex before destroying it.

Manual page for pthread_mutex_destroy() states:
Attempting to destroy a locked mutex results in undefined behavior.

git-svn-id: http://svn.apache.org/repos/asf/apr/apr-util/trunk@676800 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 1 insertions, 0 deletions

diff --git a/misc/apr_reslist.c b/misc/apr_reslist.c
index 14b7e6c4..d26c948d 100644
--- a/misc/apr_reslist.c
+++ b/misc/apr_reslist.c
@@ -158,6 +158,7 @@ static apr_status_t reslist_cleanup(void *data_)
     assert(rl->nidle == 0);
     assert(rl->ntotal == 0);
 
+    apr_thread_mutex_unlock(rl->listlock);
     apr_thread_mutex_destroy(rl->listlock);
     apr_thread_cond_destroy(rl->avail);