1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 135c1d054701..ba21d97d1855 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1014,10 +1014,6 @@ static int scsi_init_sgtable(struct request *req, struct scsi_data_buffer *sdb,
         }
 
         req->buffer = NULL;
-        if (blk_pc_request(req))
-                sdb->length = req->data_len;
-        else
-                sdb->length = req->nr_sectors << 9;
 
         /* 
          * Next, walk the list, and fill in the addresses and sizes of
@@ -1026,6 +1022,10 @@ static int scsi_init_sgtable(struct request *req, struct scsi_data_buffer *sdb,
         count = blk_rq_map_sg(req->q, req, sdb->table.sgl);
         BUG_ON(count > sdb->table.nents);
         sdb->table.nents = count;
+        if (blk_pc_request(req))
+                sdb->length = req->data_len;
+        else
+                sdb->length = req->nr_sectors << 9;
         return BLKPREP_OK;
 }