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-rw-r--r--drivers/firewire/fw-ohci.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c
index a3337482552..ec70c9f9117 100644
--- a/drivers/firewire/fw-ohci.c
+++ b/drivers/firewire/fw-ohci.c
@@ -680,6 +680,9 @@ at_context_queue_packet(struct context *ctx, struct fw_packet *packet)
/* FIXME: Document how the locking works. */
if (ohci->generation != packet->generation) {
+ if (packet->payload_length > 0)
+ dma_unmap_single(ohci->card.device, payload_bus,
+ packet->payload_length, DMA_TO_DEVICE);
packet->ack = RCODE_GENERATION;
return -1;
}