Home Home > GIT Browse
summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorDavid Miller <davem@davemloft.net>2007-04-17 14:35:07 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2007-05-01 17:05:57 -0700
commitd3bf6f8a58459b7aefc10591807846b0b5697244 (patch)
treef99d9862a8860bd466d176fbfbf68bf2b3d26aba
parent169ed0ec5ee1f3733d5b23cd0d2ddadc697472df (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>
-rw-r--r--drivers/scsi/qlogicpti.c2
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,