From: Matthieu CASTET <matthieu.castet@parrot.com>
Date: Wed, 12 Dec 2012 00:01:31 +0000 (-0800)
Subject: dmapool: make DMAPOOL_DEBUG detect corruption of free marker
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~81^2~38
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5de55b265a13bc263c823bbe05d87d2c5e785f6f;p=pandora-kernel.git

dmapool: make DMAPOOL_DEBUG detect corruption of free marker

This can help to catch the case where hardware is writing after dma free.

[akpm@linux-foundation.org: tidy code, fix comment, use sizeof(page->offset), use pr_err()]
Signed-off-by: Matthieu Castet <matthieu.castet@parrot.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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