From 4e25c0e92f8eaf69bc51d1d523bcb7268e7dd162 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 10 Dec 2013 11:35:47 +0100
Subject: [PATCH] m68k/mm: Check for mm != NULL in do_page_fault() debug code

When DEBUG is enabled, do_page_fault() may dereference a NULL pointer,
causing recursive bus errors.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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