diff options
| author | Kees Cook <keescook@chromium.org> | 2018-07-31 22:51:52 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-08-03 00:22:39 +0300 |
| commit | 4e178c17cac07d58df7d31ef6fe10036cfa3883d (patch) | |
| tree | 36dcbbaa0e078c465202a21e1ef636fc92719501 /drivers/cdrom | |
| parent | 7a6873be1b11517a0c55ab4534e4de54b3e228a3 (diff) | |
| download | linux-4e178c17cac07d58df7d31ef6fe10036cfa3883d.tar.xz | |
cdrom: Use struct scsi_sense_hdr internally
This removes more casts of struct request_sense and uses the standard
struct scsi_sense_hdr instead. This also fixes any possible stale values
since the prior code did not check the sense length.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/cdrom')
| -rw-r--r-- | drivers/cdrom/cdrom.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index 86619472d916..113fc6edb2b0 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -282,6 +282,7 @@ #include <linux/blkdev.h> #include <linux/times.h> #include <linux/uaccess.h> +#include <scsi/scsi_common.h> #include <scsi/scsi_request.h> /* used to tell the module to turn on full debugging messages */ @@ -2222,9 +2223,12 @@ static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf, blk_execute_rq(q, cdi->disk, rq, 0); if (scsi_req(rq)->result) { - struct request_sense *s = req->sense; + struct scsi_sense_hdr sshdr; + ret = -EIO; - cdi->last_sense = s->sense_key; + scsi_normalize_sense(req->sense, req->sense_len, + &sshdr); + cdi->last_sense = sshdr.sense_key; } if (blk_rq_unmap_user(bio)) |