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path: root/drivers/scsi/dc395x.c
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Diffstat (limited to 'drivers/scsi/dc395x.c')
-rw-r--r--drivers/scsi/dc395x.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index c8a32cf47d73..cbf825263f3b 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -246,6 +246,7 @@ struct ScsiReqBlk {
* total_xfer_length in xferred. These values are restored in
* pci_unmap_srb_sense. This is the only place xferred is used.
*/
+ unsigned char *virt_addr_req; /* Saved virtual address of the request buffer */
u32 xferred; /* Saved copy of total_xfer_length */
u16 state;
@@ -2017,7 +2018,7 @@ static void sg_update_list(struct ScsiReqBlk *srb, u32 left)
sg_verify_length(srb);
/* we need the corresponding virtual address */
- if (!segment) {
+ if (!segment || (srb->flag & AUTO_REQSENSE)) {
srb->virt_addr += xferred;
return;
}
@@ -3318,6 +3319,7 @@ static void pci_unmap_srb_sense(struct AdapterCtlBlk *acb,
srb->segment_x[DC395x_MAX_SG_LISTENTRY - 1].address;
srb->segment_x[0].length =
srb->segment_x[DC395x_MAX_SG_LISTENTRY - 1].length;
+ srb->virt_addr = srb->virt_addr_req;
}
@@ -3711,6 +3713,8 @@ static void request_sense(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
srb->xferred = srb->total_xfer_length;
/* srb->segment_x : a one entry of S/G list table */
srb->total_xfer_length = sizeof(cmd->sense_buffer);
+ srb->virt_addr_req = srb->virt_addr;
+ srb->virt_addr = cmd->sense_buffer;
srb->segment_x[0].length = sizeof(cmd->sense_buffer);
/* Map sense buffer */
srb->segment_x[0].address =