make gcc shut up

If -flto is used then gcc will generate a lot more warnings than before,
among them a number of use-without-initialization warnings. Most of them
without are false positives, but let's make them go away, because it
doesn't really matter.

4 files changed, 5 insertions, 5 deletions

diff --git a/src/test/test-cgroup-mask.c b/src/test/test-cgroup-mask.c
index 3414ed4d60..4d60859513 100644
--- a/src/test/test-cgroup-mask.c
+++ b/src/test/test-cgroup-mask.c
@@ -32,7 +32,7 @@
 #include "test-helper.h"
 
 static int test_cgroup_mask(void) {
-        Manager *m;
+        Manager *m = NULL;
         Unit *son, *daughter, *parent, *root, *grandchild, *parent_deep;
         FILE *serial = NULL;
         FDSet *fdset = NULL;
diff --git a/src/test/test-sched-prio.c b/src/test/test-sched-prio.c
index a4cc3d44a2..e984ee4203 100644
--- a/src/test/test-sched-prio.c
+++ b/src/test/test-sched-prio.c
@@ -25,7 +25,7 @@
 #include "macro.h"
 
 int main(int argc, char *argv[]) {
-        Manager *m;
+        Manager *m = NULL;
         Unit *idle_ok, *idle_bad, *rr_ok, *rr_bad, *rr_sched;
         Service *ser;
         FILE *serial = NULL;
diff --git a/src/test/test-unit-name.c b/src/test/test-unit-name.c
index c10ec608af..fff3e16ed8 100644
--- a/src/test/test-unit-name.c
+++ b/src/test/test-unit-name.c
@@ -110,7 +110,7 @@ static void test_replacements(void) {
 }
 
 static int test_unit_printf(void) {
-        Manager *m;
+        Manager *m = NULL;
         Unit *u, *u2;
         int r;
 
diff --git a/src/test/test-util.c b/src/test/test-util.c
index cbd60d68f7..1ac4a1edd1 100644
--- a/src/test/test-util.c
+++ b/src/test/test-util.c
@@ -567,11 +567,11 @@ static void test_in_set(void) {
 
 static void test_writing_tmpfile(void) {
         char name[] = "/tmp/test-systemd_writing_tmpfile.XXXXXX";
-        _cleanup_free_ char *contents;
+        _cleanup_free_ char *contents = NULL;
         size_t size;
         int fd, r;
-
         struct iovec iov[3];
+
         IOVEC_SET_STRING(iov[0], "abc\n");
         IOVEC_SET_STRING(iov[1], ALPHANUMERICAL "\n");
         IOVEC_SET_STRING(iov[2], "");