TIF_RESTORE_SIGMASK can be set only when TIF_SIGPENDING is set

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/frv/kernel/signal.c b/arch/frv/kernel/signal.c
index c4d9cfa..9ec3d2e 100644
--- a/arch/frv/kernel/signal.c
+++ b/arch/frv/kernel/signal.c
@@ -533,7 +533,7 @@
 		clear_thread_flag(TIF_SINGLESTEP);
 
 	/* deal with pending signal delivery */
-	if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
+	if (thread_info_flags & _TIF_SIGPENDING))
 		do_signal();
 
 	/* deal with notification on about to resume userspace execution */