From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 22 Sep 2011 09:32:25 +0000 (+0100)
Subject: ARM: dma-mapping: free allocated page if unable to map
X-Git-Tag: v3.1-rc8~9^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d8e89b47e00ee80e920761145144640aac4cf71a;p=pandora-kernel.git

ARM: dma-mapping: free allocated page if unable to map

If the attempt to map a page for DMA fails (eg, because we're out of
mapping space) then we must not hold on to the page we allocated for
DMA - doing so will result in a memory leak.

Cc: <stable@kernel.org>
Reported-by: Bryan Phillippe <bp@darkforest.org>
Tested-by: Bryan Phillippe <bp@darkforest.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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