From 52e9ce1c0f2060661e147ffaf701a17f2fc0a153 Mon Sep 17 00:00:00 2001
From: Phillip Lougher <phillip@squashfs.org.uk>
Date: Tue, 3 Sep 2013 04:21:52 +0100
Subject: [PATCH] Squashfs: fix corruption checks in squashfs_lookup()

The dir_count and size fields when read from disk are sanity
checked for correctness.  However, the sanity checks only check the
values are not greater than expected.  As dir_count and size were
incorrectly defined as signed ints, this can lead to corrupted values
appearing as negative which are not trapped.

Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
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