mn10300: fix "pull clearing RESTORE_SIGMASK into block_sigmask()" fal…

…lout

Commit a610d6e ("pull clearing RESTORE_SIGMASK into
block_sigmask()") caused:

  arch/mn10300/kernel/signal.c: In function 'handle_signal':
  arch/mn10300/kernel/signal.c:462:3: warning: 'return' with no value, in function returning non-void [-Wreturn-type]

Add the missing return values, and restore the indentation while we're
at it.

Signed-off-by: Geert Uytterhoeven <[email protected]>
Cc: Al Viro <[email protected]>
Cc: David Howells <[email protected]>
Cc: Koichi Yasutake <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

arch/mn10300/kernel/signal.c

@@ -459,10 +459,11 @@ static int handle_signal(int sig,
 	else
 		ret = setup_frame(sig, ka, oldset, regs);
 	if (ret)
-		return;
+		return ret;
 
 	signal_delivered(sig, info, ka, regs,
-				 test_thread_flag(TIF_SINGLESTEP));
+			 test_thread_flag(TIF_SINGLESTEP));
+	return 0;
 }
 
 /*