sfc: Don't leak PCI DMA maps in the TSO code when the queue fills up
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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@ -1096,6 +1096,11 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
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efx_stop_queue(tx_queue->efx);
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unwind:
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/* Free the DMA mapping we were in the process of writing out */
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if (state.ifc.unmap_len)
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pci_unmap_page(tx_queue->efx->pci_dev, state.ifc.unmap_addr,
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state.ifc.unmap_len, PCI_DMA_TODEVICE);
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efx_enqueue_unwind(tx_queue);
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return rc2;
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}
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