diff options
| author | Kees Cook <keescook@chromium.org> | 2017-02-14 03:25:26 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-02-14 18:29:56 +0300 |
| commit | 853fe1bf7554155376bb3b231112cdff9ff79177 (patch) | |
| tree | 7d8b38a77574919d078443cecffcae9dd380a692 /drivers/ide/ide-cd.c | |
| parent | d1a987f35ebf859a771ac530e95a89933b6fcce8 (diff) | |
| download | linux-853fe1bf7554155376bb3b231112cdff9ff79177.tar.xz | |
cdrom: Make device operations read-only
Since function tables are a common target for attackers, it's best to keep
them in read-only memory. As such, this makes the CDROM device ops tables
const. This drops additionally n_minors, since it isn't used meaningfully,
and sets the only user of cdrom_dummy_generic_packet explicitly so the
variables can all be const.
Inspired by similar changes in grsecurity/PaX.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/ide/ide-cd.c')
| -rw-r--r-- | drivers/ide/ide-cd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 9cbd217bc0c9..ab9232e1e16f 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -1166,7 +1166,7 @@ void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf) CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \ CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM) -static struct cdrom_device_ops ide_cdrom_dops = { +static const struct cdrom_device_ops ide_cdrom_dops = { .open = ide_cdrom_open_real, .release = ide_cdrom_release_real, .drive_status = ide_cdrom_drive_status, |