diff options
Diffstat (limited to 'drivers/scsi/sd.c')
| -rw-r--r-- | drivers/scsi/sd.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 0994ab63b598..1d0c4b7c3b69 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -468,6 +468,10 @@ static int scsi_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); + if (ret != BLKPREP_OK) { + __free_page(page); + rq->buffer = NULL; + } return ret; } @@ -485,8 +489,10 @@ static int scsi_setup_flush_cmnd(struct scsi_device *sdp, struct request *rq) static void sd_unprep_fn(struct request_queue *q, struct request *rq) { - if (rq->cmd_flags & REQ_DISCARD) - __free_page(virt_to_page(rq->buffer)); + if (rq->cmd_flags & REQ_DISCARD) { + free_page((unsigned long)rq->buffer); + rq->buffer = NULL; + } } /** |