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Commit 4677735f authored by FUJITA Tomonori's avatar FUJITA Tomonori Committed by Jens Axboe
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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: default avatarFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent 0b6cb26c

drivers/scsi/sg.c

+0 −7
Original line number Diff line number Diff line
@@ -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) {