core/unit: fix unit_add_target_dependencies() for units with no dependencies

For units without any dependencies, r needs to be initialized to 0.
Otherwise, the return value of unit_add_target_dependencies() is
unspecified.

diff --git a/src/core/unit.c b/src/core/unit.c
index 21ad434f9d7d88af50bd0a13d58e6693df721f72..016b1e3d869d846b29806e1be9f758c8529f249d 100644 (file)
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -959,7 +959,7 @@ static int unit_add_target_dependencies(Unit *u) {
         Unit *target;
         Iterator i;
         unsigned k;
-        int r;
+        int r = 0;
 
         assert(u);