From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Mon, 26 Mar 2012 15:48:20 +0000 (-0500)
Subject: rtlwifi: Add missing DMA buffer unmapping for PCI drivers
X-Git-Tag: v3.4-rc3~32^2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=673f7786e205c87b5d978c62827b9a66d097bebb;p=pandora-kernel.git

rtlwifi: Add missing DMA buffer unmapping for PCI drivers

In https://bugzilla.kernel.org/show_bug.cgi?id=42976, a system with driver
rtl8192se used as an AP suffers from "Out of SW-IOMMU space" errors. These
are caused by the DMA buffers used for beacons never being unmapped.

This bug was also reported at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/961618

Reported-and-Tested-by: Da Xue <da@lessconfused.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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