[ Upstream commit 5c2442fd78998af60e13aba506d103f7f43f8701 ]
If scsi cmd sglist is not suitable for DDP then csiostor driver uses preallocated buffers for DDP, because of this data copy is required from DDP buffer to scsi cmd sglist before calling ->scsi_done().
Signed-off-by: Varun Prakash varun@chelsio.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/csiostor/csio_scsi.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c index 86103c8475d8e..fbb2052bc4129 100644 --- a/drivers/scsi/csiostor/csio_scsi.c +++ b/drivers/scsi/csiostor/csio_scsi.c @@ -1737,8 +1737,11 @@ csio_scsi_err_handler(struct csio_hw *hw, struct csio_ioreq *req) }
out: - if (req->nsge > 0) + if (req->nsge > 0) { scsi_dma_unmap(cmnd); + if (req->dcopy && (host_status == DID_OK)) + host_status = csio_scsi_copy_to_sgl(hw, req); + }
cmnd->result = (((host_status) << 16) | scsi_status); cmnd->scsi_done(cmnd);