From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Thu, 22 May 2008 22:00:25 +0000 (+0400)
Subject: atl1: fix 4G memory corruption bug
X-Git-Tag: v2.6.26-rc5~1^2~16^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aefdbf1a3b832a580a50cf3d1dcbb717be7cbdbe;p=pandora-kernel.git

atl1: fix 4G memory corruption bug

When using 4+ GB RAM and SWIOTLB is active, the driver corrupts
memory by writing an skb after the relevant DMA page has been
unmapped.  Although this doesn't happen when *not* using bounce
buffers, clearing the pointer to the DMA page after unmapping
it fixes the problem.

http://marc.info/?t=120861317000005&r=2&w=2

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---

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