rtlwifi: Add missing DMA buffer unmapping for PCI drivers

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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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This commit is contained in:

Larry Finger 2012-03-26 10:48:20 -05:00 • committed by John W. Linville

parent 69b8797fc4

commit a75e2ad772

1 changed files with 6 additions and 1 deletions

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7

drivers/net/wireless/rtlwifi/pci.c

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