Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8d3ee2cb0ab59f78fdc801ede7db15ef47387bd0
Commit: 8d3ee2cb0ab59f78fdc801ede7db15ef47387bd0
Parent: d791d413fd8527aa6b130882cc84d52aee0fe980
Author: David S. Miller <[EMAIL PROTECTED]>
AuthorDate: Sat Apr 14 10:29:10 2007 -0700
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Sat Apr 14 10:29:10 2007 -0700
[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 <[EMAIL PROTECTED]>
---
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 9b827ce..9f10689 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,
-
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