Signed-off-by: Maurizio Lombardi <mlombard@xxxxxxxxxx> --- drivers/scsi/sr.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index 3f3cb72..e64311d 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -49,6 +49,7 @@ #include <linux/uaccess.h> #include <scsi/scsi.h> +#include <scsi/sg.h> #include <scsi/scsi_dbg.h> #include <scsi/scsi_device.h> #include <scsi/scsi_driver.h> @@ -553,6 +554,7 @@ static int sr_block_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd, struct scsi_cd *cd = scsi_cd(bdev->bd_disk); struct scsi_device *sdev = cd->device; void __user *argp = (void __user *)arg; + struct sg_io_hdr hdr; int ret; mutex_lock(&sr_mutex); @@ -571,6 +573,12 @@ static int sr_block_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd, case SCSI_IOCTL_GET_BUS_NUMBER: ret = scsi_ioctl(sdev, cmd, argp); goto out; + case SG_IO: + if (copy_from_user(&hdr, argp, sizeof(hdr))) + break; + if (hdr.dxfer_direction == SG_DXFER_TO_DEV) + sdev->changed = 1; + break; } ret = cdrom_ioctl(&cd->cdi, bdev, mode, cmd, arg); -- Maurizio Lombardi
