diff options
| author | David Miller <davem@davemloft.net> | 2007-04-17 14:35:07 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-05-01 17:05:57 -0700 |
| commit | d3bf6f8a58459b7aefc10591807846b0b5697244 (patch) | |
| tree | f99d9862a8860bd466d176fbfbf68bf2b3d26aba /drivers/scsi | |
| parent | 169ed0ec5ee1f3733d5b23cd0d2ddadc697472df (diff) | |
Fix qlogicpti DMA unmapping
[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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/qlogicpti.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c index 9b827ceec501..9f10689905a8 100644 --- a/drivers/scsi/qlogicpti.c +++ b/drivers/scsi/qlogicpti.c @@ -1281,7 +1281,7 @@ static struct scsi_cmnd *qlogicpti_intr_handler(struct qlogicpti *qpti) (struct scatterlist *)Cmnd->request_buffer, Cmnd->use_sg, Cmnd->sc_data_direction); - } else { + } else if (Cmnd->request_bufflen) { sbus_unmap_single(qpti->sdev, (__u32)((unsigned long)Cmnd->SCp.ptr), Cmnd->request_bufflen, |