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Old 03-30-2010, 10:56 PM
Greg KH
Default Bug#575726: rt2860sta: Fix argument to linux_pci_unmap_single()

2.6.32-stable review patch. If anyone has any objections, please let us know.


From: Ben Hutchings <ben@decadent.org.uk>

John Halton wrote in <http://bugs.debian.org/575726>:
> Whenever wpa_supplicant is deactivated (whether by killing the process or
> during a normal shutdown) I am getting a kerneloops that prevents the
> computer from completing shutdown. Here is the relevant syslog output:

The backtrace points to an incorrect call from RTMPFreeTxRxRingMemory()
into linux_pci_unmap_single(). This appears to have been fixed in Linux
2.6.33 by this change:

commit ca97b8388838ee9ea4b4bad04948f8f7f8a607a3
Author: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue Sep 22 20:44:07 2009 +0200

Staging: rt28x0: updates from vendor's V2.1.0.0 drivers

For stable-2.6.32, just fix this one function call.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/rt2860/common/2860_rtmp_init.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/rt2860/common/2860_rtmp_init.c
+++ b/drivers/staging/rt2860/common/2860_rtmp_init.c
@@ -716,7 +716,7 @@ VOID RTMPFreeTxRxRingMemory(
if ((pAd->RxRing.Cell[index].DmaBuf.AllocVa) && (pAd->RxRing.Cell[index].pNdisPacket))
- PCI_UNMAP_SINGLE(pObj->pci_dev, pAd->RxRing.Cell[index].DmaBuf.AllocPa, pAd->RxRing.Cell[index].DmaBuf.AllocSize, PCI_DMA_FROMDEVICE);
+ PCI_UNMAP_SINGLE(pAd, pAd->RxRing.Cell[index].DmaBuf.AllocPa, pAd->RxRing.Cell[index].DmaBuf.AllocSize, PCI_DMA_FROMDEVICE);
RELEASE_NDIS_PACKET(pAd, pAd->RxRing.Cell[index].pNdisPacket, NDIS_STATUS_SUCCESS);

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