journalctl: fix error cause in log message

If varlink_call() returns negative errno, then `error` is null.
2019-06-04 17:03:36 +09:00
parent 3681d63935
commit 17087340c3
1 changed files with 4 additions and 1 deletions
@@ -1955,7 +1955,10 @@ static int simple_varlink_call(const char *option, const char *method) {

        r = varlink_call(link, method, NULL, NULL, &error, NULL);
        if (r < 0)
-                return log_error_errno(r, "Failed to execute varlink call: %s", error);
+                return log_error_errno(r, "Failed to execute varlink call: %m");
+        if (error)
+                return log_error_errno(SYNTHETIC_ERRNO(ENOANO),
+                                       "Failed to execute varlink call: %s", error);

        return 0;
 }