1 files changed, 1 insertions, 0 deletions
diff --git a/pool.c b/pool.c
index 4c9d329..edc2827 100644
--- a/pool.c
+++ b/pool.c
@@ -155,6 +155,7 @@ int psql_pool_release( PgConnPool *pool, PGconn *conn )
 	}
 	
 	if( i < 0 ) {
+		(void)pthread_mutex_unlock( &pool->lock );
 		return -EINVAL;
 	}