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path: root/drivers/scsi/sd.c
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Diffstat (limited to 'drivers/scsi/sd.c')
-rw-r--r--drivers/scsi/sd.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index efcbcd182863..06d154d20faa 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -739,14 +739,11 @@ static int sd_setup_discard_cmnd(struct scsi_device *sdp, struct request *rq)
blk_add_request_payload(rq, page, len);
ret = scsi_setup_blk_pc_cmnd(sdp, rq);
- rq->buffer = page_address(page);
rq->__data_len = nr_bytes;
out:
- if (ret != BLKPREP_OK) {
+ if (ret != BLKPREP_OK)
__free_page(page);
- rq->buffer = NULL;
- }
return ret;
}
@@ -843,8 +840,9 @@ static void sd_unprep_fn(struct request_queue *q, struct request *rq)
struct scsi_cmnd *SCpnt = rq->special;
if (rq->cmd_flags & REQ_DISCARD) {
- free_page((unsigned long)rq->buffer);
- rq->buffer = NULL;
+ struct bio *bio = rq->bio;
+
+ __free_page(bio->bi_io_vec->bv_page);
}
if (SCpnt->cmnd != rq->cmd) {
mempool_free(SCpnt->cmnd, sd_cdb_pool);