From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 7 Nov 2008 00:07:15 +0000 (+0000)
Subject: ARM: xsc3: fix xsc3_l2_inv_range
X-Git-Tag: v2.6.27.6~31
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0425d0a8eddbe8065a5ca705340646b7ad3d34a6;p=pandora-kernel.git

ARM: xsc3: fix xsc3_l2_inv_range

commit c7cf72dcadbe39c2077b32460f86c9f8167be3be upstream

When 'start' and 'end' are less than a cacheline apart and 'start' is
unaligned we are done after cleaning and invalidating the first
cacheline.  So check for (start < end) which will not walk off into
invalid address ranges when (start > end).

This issue was caught by drivers/dma/dmatest.

2.6.27 is susceptible.

Cc: <stable@kernel.org>
Cc: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: Lothar Wafmann <LW@KARO-electronics.de>
Cc: Lennert Buytenhek <buytenh@marvell.com>
Cc: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

Reading git-diff-tree failed