execute: fix if check

Fixes: coverity 1430459

diff --git a/src/core/execute.c b/src/core/execute.c
index 70b7b8dc3c23bfb6dfa05e37380662f301c24ebe..a67eb716e422729969246f444bff33004bb8b824 100644 (file)
--- a/src/core/execute.c
+++ b/src/core/execute.c
@@ -2630,7 +2630,7 @@ static int apply_mount_namespace(
 
                         if (streq_ptr(runtime->var_tmp_dir, RUN_SYSTEMD_EMPTY))
                                 var_tmp_dir = runtime->var_tmp_dir;
-                        else if (runtime->tmp_dir)
+                        else if (runtime->var_tmp_dir)
                                 var_tmp_dir = strjoina(runtime->var_tmp_dir, "/tmp");
                 }