[SCSI] tgt: convert to use the data buffer accessors

- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 6 insertions, 5 deletions

diff --git a/drivers/scsi/scsi_tgt_lib.c b/drivers/scsi/scsi_tgt_lib.c
index a91761c3645f..deea3cd5bf49 100644
--- a/drivers/scsi/scsi_tgt_lib.c
+++ b/drivers/scsi/scsi_tgt_lib.c
@@ -331,7 +331,7 @@ static void scsi_tgt_cmd_done(struct scsi_cmnd *cmd)
 
         scsi_tgt_uspace_send_status(cmd, tcmd->itn_id, tcmd->tag);
 
-        if (cmd->request_buffer)
+        if (scsi_sglist(cmd))
                 scsi_free_sgtable(cmd);
 
         queue_work(scsi_tgtd, &tcmd->work);
@@ -365,14 +365,15 @@ static int scsi_tgt_init_cmd(struct scsi_cmnd *cmd, gfp_t gfp_mask)
 
         cmd->request_bufflen = rq->data_len;
 
-        dprintk("cmd %p cnt %d %lu\n", cmd, cmd->use_sg, rq_data_dir(rq));
-        count = blk_rq_map_sg(rq->q, rq, cmd->request_buffer);
-        if (likely(count <= cmd->use_sg)) {
+        dprintk("cmd %p cnt %d %lu\n", cmd, scsi_sg_count(cmd),
+                rq_data_dir(rq));
+        count = blk_rq_map_sg(rq->q, rq, scsi_sglist(cmd));
+        if (likely(count <= scsi_sg_count(cmd))) {
                 cmd->use_sg = count;
                 return 0;
         }
 
-        eprintk("cmd %p cnt %d\n", cmd, cmd->use_sg);
+        eprintk("cmd %p cnt %d\n", cmd, scsi_sg_count(cmd));
         scsi_free_sgtable(cmd);
         return -EINVAL;
 }