1 files changed, 2 insertions, 20 deletions

diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 770c4324f3d5..dd592f6a2529 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4194,27 +4194,10 @@ static void st_intr(struct scsi_cmnd *SCpnt)
  */
 static int st_init_command(struct scsi_cmnd *SCpnt)
 {
-        struct request *rq;
-
         if (!(SCpnt->request->flags & REQ_BLOCK_PC))
                 return 0;
 
-        rq = SCpnt->request;
-        if (sizeof(rq->cmd) > sizeof(SCpnt->cmnd))
-                return 0;
-
-        memcpy(SCpnt->cmnd, rq->cmd, sizeof(SCpnt->cmnd));
-        SCpnt->cmd_len = rq->cmd_len;
-
-        if (rq_data_dir(rq) == WRITE)
-                SCpnt->sc_data_direction = DMA_TO_DEVICE;
-        else if (rq->data_len)
-                SCpnt->sc_data_direction = DMA_FROM_DEVICE;
-        else
-                SCpnt->sc_data_direction = DMA_NONE;
-
-        SCpnt->timeout_per_command = rq->timeout;
-        SCpnt->transfersize = rq->data_len;
+        scsi_setup_blk_pc_cmnd(SCpnt, 0);
         SCpnt->done = st_intr;
         return 1;
 }
@@ -4509,6 +4492,7 @@ static int sgl_map_user_pages(struct scatterlist *sgl, const unsigned int max_pa
         if (res > 0) {
                 for (j=0; j < res; j++)
                         page_cache_release(pages[j]);
+                res = 0;
         }
         kfree(pages);
         return res;
@@ -4524,8 +4508,6 @@ static int sgl_unmap_user_pages(struct scatterlist *sgl, const unsigned int nr_p
         for (i=0; i < nr_pages; i++) {
                 struct page *page = sgl[i].page;
 
-                /* XXX: just for debug. Remove when PageReserved is removed */
-                BUG_ON(PageReserved(page));
                 if (dirtied)
                         SetPageDirty(page);
                 /* FIXME: cache flush missing for rw==READ