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/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
index f39346f..d599a7f 100644
--- a/arch/c6x/kernel/signal.c
+++ b/arch/c6x/kernel/signal.c
@@ -335,8 +335,7 @@
 				 int syscall)
 {
 	/* deal with pending signal delivery */
-	if (thread_info_flags & ((1 << TIF_SIGPENDING) |
-				 (1 << TIF_RESTORE_SIGMASK)))
+	if (thread_info_flags & (1 << TIF_SIGPENDING))
 		do_signal(regs, syscall);
 
 	if (thread_info_flags & (1 << TIF_NOTIFY_RESUME)) {