linux-stable-rt/drivers/firewire
Stefan Richter 1d1dc5e83f firewire: fw-ohci: fix IOMMU resource exhaustion
There is a DMA map/ unmap imbalance whenever a block write request
packet is sent and then dequeued with ohci_cancel_packet.  The latter
may happen frequently if the AR resp tasklet is executed before the AT
req tasklet for the same transaction.

Add the missing dma_unmap_single.  This fixes
https://bugzilla.redhat.com/show_bug.cgi?id=475156

Reported-by: Emmanuel Kowalski
Tested-by: Emmanuel Kowalski
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2008-12-10 12:45:34 +01:00
..
Kconfig
Makefile
fw-card.c
fw-cdev.c
fw-device.c
fw-device.h
fw-iso.c
fw-ohci.c firewire: fw-ohci: fix IOMMU resource exhaustion 2008-12-10 12:45:34 +01:00
fw-ohci.h
fw-sbp2.c
fw-topology.c
fw-topology.h
fw-transaction.c firewire: fw-ohci: fix IOMMU resource exhaustion 2008-12-10 12:45:34 +01:00
fw-transaction.h firewire: fw-ohci: fix IOMMU resource exhaustion 2008-12-10 12:45:34 +01:00