logind: fix write_string_file() fallout

WRITE_STRING_FILE_ATOMIC is only valid if WRITE_STRING_FILE_CREATE is also
given. IOW, an atomic file write operation is only possible when creating a
file is also being asked for.

This is a regression from the recent write_string_file() rework.

diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c
index 049e33e2a6b48f61a5f2c8b35f12411ebe628e3e..e6371ff04d9a323e4af123047097c02e94102be0 100644 (file)
--- a/src/login/logind-dbus.c
+++ b/src/login/logind-dbus.c
@@ -1774,7 +1774,7 @@ static int nologin_timeout_handler(
 
         log_info("Creating /run/nologin, blocking further logins...");
 
-        r = write_string_file("/run/nologin", "System is going down.", WRITE_STRING_FILE_ATOMIC);
+        r = write_string_file("/run/nologin", "System is going down.", WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_ATOMIC);
         if (r < 0)
                 log_error_errno(r, "Failed to create /run/nologin: %m");
         else