mdb_env_setup_locks: Plug mutexattr leak on error

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 0bdfef547ce1a87a429ec67f73b57205f9f4a250..1edc282b814ca220ca3b4e15a458b1e8320edcce 100644 (file)
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -4628,15 +4628,18 @@ mdb_env_setup_locks(MDB_env *env, char *lpath, int mode, int *excl)
                memset(env->me_txns->mti_rmutex, 0, sizeof(*env->me_txns->mti_rmutex));
                memset(env->me_txns->mti_wmutex, 0, sizeof(*env->me_txns->mti_wmutex));
 
-               if ((rc = pthread_mutexattr_init(&mattr))
-                       || (rc = pthread_mutexattr_setpshared(&mattr, PTHREAD_PROCESS_SHARED))
+               if ((rc = pthread_mutexattr_init(&mattr)))
+                       goto fail;
+
+               rc = pthread_mutexattr_setpshared(&mattr, PTHREAD_PROCESS_SHARED);
 #ifdef MDB_ROBUST_SUPPORTED
-                       || (rc = pthread_mutexattr_setrobust(&mattr, PTHREAD_MUTEX_ROBUST))
+               if (!rc) rc = pthread_mutexattr_setrobust(&mattr, PTHREAD_MUTEX_ROBUST);
 #endif
-                       || (rc = pthread_mutex_init(env->me_txns->mti_rmutex, &mattr))
-                       || (rc = pthread_mutex_init(env->me_txns->mti_wmutex, &mattr)))
-                       goto fail;
+               if (!rc) rc = pthread_mutex_init(env->me_txns->mti_rmutex, &mattr);
+               if (!rc) rc = pthread_mutex_init(env->me_txns->mti_wmutex, &mattr);
                pthread_mutexattr_destroy(&mattr);
+               if (rc)
+                       goto fail;
 #endif /* _WIN32 || MDB_USE_POSIX_SEM */
 
                env->me_txns->mti_magic = MDB_MAGIC;