pull clearing RESTORE_SIGMASK into block_sigmask()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c
index 26a1d98..1715478 100644
--- a/arch/mn10300/kernel/signal.c
+++ b/arch/mn10300/kernel/signal.c
@@ -462,11 +462,12 @@
 		ret = setup_rt_frame(sig, ka, info, oldset, regs);
 	else
 		ret = setup_frame(sig, ka, oldset, regs);
+	if (ret)
+		return;
 
-	if (ret == 0)
-		block_sigmask(ka, sig);
-
-	return ret;
+	block_sigmask(ka, sig);
+	tracehook_signal_handler(sig, info, ka, regs,
+				 test_thread_flag(TIF_SINGLESTEP));
 }
 
 /*
@@ -486,15 +487,6 @@
 	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
 	if (signr > 0) {
 		if (handle_signal(signr, &info, &ka, regs) == 0) {
-			/* a signal was successfully delivered; the saved
-			 * sigmask will have been stored in the signal frame,
-			 * and will be restored by sigreturn, so we can simply
-			 * clear the TIF_RESTORE_SIGMASK flag */
-			if (test_thread_flag(TIF_RESTORE_SIGMASK))
-				clear_thread_flag(TIF_RESTORE_SIGMASK);
-
-			tracehook_signal_handler(signr, &info, &ka, regs,
-						 test_thread_flag(TIF_SINGLESTEP));
 		}
 
 		return;