From a51345770e519552e749ff457a2a9f83171a67b5 Mon Sep 17 00:00:00 2001
From: Anurag Aggarwal <a.anurag@samsung.com>
Date: Mon, 24 Feb 2014 11:17:36 +0100
Subject: [PATCH] ARM: 7987/1: ARM : unwinder : Prevent data abort due to stack
 overflow

While unwinding backtrace, stack overflow is possible. This stack
overflow can sometimes lead to data abort in system if the area after
stack is not mapped to physical memory.

To prevent this problem from happening, execute the instructions that
can cause a data abort in separate helper functions, where a check for
feasibility is made before reading each word from the stack.

Signed-off-by: Anurag Aggarwal <a.anurag@samsung.com>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
Reading git-format-patch failed