From 46b831f219fa519f61e3bff8aeabb75298f706d1 Mon Sep 17 00:00:00 2001
From: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Date: Thu, 5 Dec 2013 14:23:48 +0100
Subject: [PATCH] ARM: 7913/1: fix framepointer check in unwind_frame

commit 3abb6671a9c04479c4bd026798a05f857393b7e2 upstream.

This patch fixes corner case when (fp + 4) overflows unsigned long,
for example: fp = 0xFFFFFFFF -> fp + 4 == 3.

Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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