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ibmvnic: Unmap longer term buffer before free

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Make sure we unregister long term buffers from the adapter
prior to DMA unmapping it and freeing the buffer. Failure
to do so could result in a DMA to a now invalid address.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Brian King 2017-04-19 13:44:41 -04:00 committed by David S. Miller
parent 993a82b0ff
commit 59af56c25b
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/ibm/ibmvnic.c
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@ -193,9 +193,9 @@ static void free_long_term_buff(struct ibmvnic_adapter *adapter,
if (!ltb->buff)
return;
dma_free_coherent(dev, ltb->size, ltb->buff, ltb->addr);
if (!adapter->failover)
send_request_unmap(adapter, ltb->map_id);
dma_free_coherent(dev, ltb->size, ltb->buff, ltb->addr);
}
static void replenish_rx_pool(struct ibmvnic_adapter *adapter,