linux

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History

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

fw-card.c

firewire: fw_send_request_sync()

2008-10-15 22:21:09 +02:00

fw-cdev.c

firewire: fix ioctl() return code

2008-10-15 22:21:10 +02:00

fw-device.c

firewire: struct device - replace bus_id with dev_name(), dev_set_name()

2008-10-31 08:48:25 +01:00

fw-device.h

firewire: remove unused struct members