firstboot: fix crash when hostname question is skipped

(cherry picked from commit b66a4c157e9754528eec16c235265b4ce94d31e8)

diff --git a/src/firstboot/firstboot.c b/src/firstboot/firstboot.c
index 9be62b8df3d7aa66ce9325759c1020844c96dad1..a389eeae10ed057c76353e90688894cd636b2a3b 100644 (file)
--- a/src/firstboot/firstboot.c
+++ b/src/firstboot/firstboot.c
@@ -634,7 +634,9 @@ static int prompt_hostname(int rfd) {
         if (r < 0)
                 return r;
 
-        hostname_cleanup(arg_hostname);
+        if (arg_hostname)
+                hostname_cleanup(arg_hostname);
+
         return 0;
 }