From 54f8a7ae7c210382a3037887a9831462741ae0db Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Tue, 31 Jul 2018 12:51:46 -0700 Subject: ide-cd: Drop unused sense buffers This drops unused sense buffers from: cdrom_eject() cdrom_read_capacity() cdrom_read_tocentry() ide_cd_lockdoor() ide_cd_read_toc() Acked-by: David S. Miller Reviewed-by: Christoph Hellwig Signed-off-by: Kees Cook Signed-off-by: Jens Axboe --- drivers/ide/ide-cd_ioctl.c | 34 ++++++++++++---------------------- 1 file changed, 12 insertions(+), 22 deletions(-) (limited to 'drivers/ide/ide-cd_ioctl.c') diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c index b1322400887b..14540544413c 100644 --- a/drivers/ide/ide-cd_ioctl.c +++ b/drivers/ide/ide-cd_ioctl.c @@ -105,8 +105,7 @@ unsigned int ide_cdrom_check_events_real(struct cdrom_device_info *cdi, /* Eject the disk if EJECTFLAG is 0. If EJECTFLAG is 1, try to reload the disk. */ static -int cdrom_eject(ide_drive_t *drive, int ejectflag, - struct request_sense *sense) +int cdrom_eject(ide_drive_t *drive, int ejectflag) { struct cdrom_info *cd = drive->driver_data; struct cdrom_device_info *cdi = &cd->devinfo; @@ -129,20 +128,16 @@ int cdrom_eject(ide_drive_t *drive, int ejectflag, cmd[0] = GPCMD_START_STOP_UNIT; cmd[4] = loej | (ejectflag != 0); - return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, 0); + return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, NULL, 0, 0); } /* Lock the door if LOCKFLAG is nonzero; unlock it otherwise. */ static -int ide_cd_lockdoor(ide_drive_t *drive, int lockflag, - struct request_sense *sense) +int ide_cd_lockdoor(ide_drive_t *drive, int lockflag) { - struct request_sense my_sense; + struct request_sense my_sense, *sense = &my_sense; int stat; - if (sense == NULL) - sense = &my_sense; - /* If the drive cannot lock the door, just pretend. */ if ((drive->dev_flags & IDE_DFLAG_DOORLOCKING) == 0) { stat = 0; @@ -186,23 +181,22 @@ int ide_cd_lockdoor(ide_drive_t *drive, int lockflag, int ide_cdrom_tray_move(struct cdrom_device_info *cdi, int position) { ide_drive_t *drive = cdi->handle; - struct request_sense sense; if (position) { - int stat = ide_cd_lockdoor(drive, 0, &sense); + int stat = ide_cd_lockdoor(drive, 0); if (stat) return stat; } - return cdrom_eject(drive, !position, &sense); + return cdrom_eject(drive, !position); } int ide_cdrom_lock_door(struct cdrom_device_info *cdi, int lock) { ide_drive_t *drive = cdi->handle; - return ide_cd_lockdoor(drive, lock, NULL); + return ide_cd_lockdoor(drive, lock); } /* @@ -213,7 +207,6 @@ int ide_cdrom_select_speed(struct cdrom_device_info *cdi, int speed) { ide_drive_t *drive = cdi->handle; struct cdrom_info *cd = drive->driver_data; - struct request_sense sense; u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; int stat; unsigned char cmd[BLK_MAX_CDB]; @@ -236,7 +229,7 @@ int ide_cdrom_select_speed(struct cdrom_device_info *cdi, int speed) cmd[5] = speed & 0xff; } - stat = ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, &sense, 0, 0); + stat = ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, NULL, 0, 0); if (!ide_cdrom_get_capabilities(drive, buf)) { ide_cdrom_update_speed(drive, buf); @@ -252,11 +245,10 @@ int ide_cdrom_get_last_session(struct cdrom_device_info *cdi, struct atapi_toc *toc; ide_drive_t *drive = cdi->handle; struct cdrom_info *info = drive->driver_data; - struct request_sense sense; int ret; if ((drive->atapi_flags & IDE_AFLAG_TOC_VALID) == 0 || !info->toc) { - ret = ide_cd_read_toc(drive, &sense); + ret = ide_cd_read_toc(drive); if (ret) return ret; } @@ -300,7 +292,6 @@ int ide_cdrom_reset(struct cdrom_device_info *cdi) { ide_drive_t *drive = cdi->handle; struct cdrom_info *cd = drive->driver_data; - struct request_sense sense; struct request *rq; int ret; @@ -315,7 +306,7 @@ int ide_cdrom_reset(struct cdrom_device_info *cdi) * lock it again. */ if (drive->atapi_flags & IDE_AFLAG_DOOR_LOCKED) - (void)ide_cd_lockdoor(drive, 1, &sense); + (void)ide_cd_lockdoor(drive, 1); return ret; } @@ -355,7 +346,6 @@ static int ide_cd_fake_play_trkind(ide_drive_t *drive, void *arg) struct atapi_toc_entry *first_toc, *last_toc; unsigned long lba_start, lba_end; int stat; - struct request_sense sense; unsigned char cmd[BLK_MAX_CDB]; stat = ide_cd_get_toc_entry(drive, ti->cdti_trk0, &first_toc); @@ -380,7 +370,7 @@ static int ide_cd_fake_play_trkind(ide_drive_t *drive, void *arg) lba_to_msf(lba_start, &cmd[3], &cmd[4], &cmd[5]); lba_to_msf(lba_end - 1, &cmd[6], &cmd[7], &cmd[8]); - return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, &sense, 0, 0); + return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, NULL, 0, 0); } static int ide_cd_read_tochdr(ide_drive_t *drive, void *arg) @@ -391,7 +381,7 @@ static int ide_cd_read_tochdr(ide_drive_t *drive, void *arg) int stat; /* Make sure our saved TOC is valid. */ - stat = ide_cd_read_toc(drive, NULL); + stat = ide_cd_read_toc(drive); if (stat) return stat; -- cgit v1.2.3