sg: remove unnecessary blk_rq_unmap_user

blk_rq_unmap_user in sg_finish_rem_req can take care of all the cases.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 0 insertions, 7 deletions

diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index df8bf67b171a..ba9b9bbd4e73 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -522,10 +522,6 @@ sg_new_read(Sg_fd * sfp, char __user *buf, size_t count, Sg_request * srp)
                 err = -EFAULT;
                 goto err_out;
         }
-        if (srp->bio) {
-                err = blk_rq_unmap_user(srp->bio);
-                srp->bio = NULL;
-        }
 err_out:
         sg_finish_rem_req(srp);
         return (0 == err) ? count : err;
@@ -1844,9 +1840,6 @@ sg_read_oxfer(Sg_request * srp, char __user *outp, int num_read_xfer)
         if ((!outp) || (num_read_xfer <= 0))
                 return 0;
 
-        blk_rq_unmap_user(srp->bio);
-        srp->bio = NULL;
-
         num = 1 << (PAGE_SHIFT + schp->page_order);
         for (k = 0; k < schp->k_use_sg && schp->pages[k]; k++) {
                 if (num > num_read_xfer) {