[PATCH] xtensa: fix build failure in xtensa/kernel/signal.c

[Paul Gortmaker]

Caused by commit 3785006ac3c8941feb63097c416de92114a6bc39

    "xtensa: don't mask signals if we fail to setup signal stack"

It assigns a return value to "ret", but there is no such variable
anywhere in scope.  Create one.

Cc: Matt Fleming <matt.fleming@xxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Chris Zankel <chris@xxxxxxxxxx>
Signed-off-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>

diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
index b69b000..d78869a 100644
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -496,6 +496,7 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
 	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
 
 	if (signr > 0) {
+		int ret;
 
 		/* Are we from a system call? */
 
-- 
1.7.9.1

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