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linux/drivers/scsi/qlogicpti.c
David S. Miller 8d3ee2cb0a [SCSI] QLOGICPTI: Do not unmap DMA unless we actually mapped something. 
We only map DMA when cmd->request_bufflen is non-zero for non-sg
buffers, we thus should make the same check when unmapping.

Based upon a report from Pasi Pirhonen.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-14 10:29:10 -07:00

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