Fixing memory leak in mem_pools_alloc.

src/liballocator/mem-poolman.c

@@ -181,8 +181,11 @@ mem_pools_alloc( mem_pool_chunk_type_t chunk_type) /**< chunk type */
         if ( pool_space == NULL )
           {
             /**
-             * Not enough memory.
+             * Not enough memory. Freeing pool header that was allocated above.
              */
+
+            mem_pool_free_chunk( &mem_pool_for_pool_headers, (uint8_t*) pool_state);
+
             return NULL;
           }