From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 7 Nov 2008 00:43:55 +0000 (-0700)
Subject: [ARM] xsc3: fix xsc3_l2_inv_range
X-Git-Tag: v2.6.28-rc4~24^2~1^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c7cf72dcadbe39c2077b32460f86c9f8167be3be;p=pandora-kernel.git

[ARM] xsc3: fix xsc3_l2_inv_range

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 WaÃ<9f>mann <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>
---

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