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/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c
index dc7875a..3ac1a60 100644
--- a/arch/avr32/kernel/signal.c
+++ b/arch/avr32/kernel/signal.c
@@ -303,7 +303,7 @@
 	if ((sysreg_read(SR) & MODE_MASK) == MODE_SUPERVISOR)
 		syscall = 1;
 
-	if (ti->flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
+	if (ti->flags & _TIF_SIGPENDING))
 		do_signal(regs, syscall);
 
 	if (ti->flags & _TIF_NOTIFY_RESUME) {