diff options
Diffstat (limited to 'drivers/s390/block/dasd_ioctl.c')
| -rw-r--r-- | drivers/s390/block/dasd_ioctl.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c index e3ad34686444..bb6caf46bbd9 100644 --- a/drivers/s390/block/dasd_ioctl.c +++ b/drivers/s390/block/dasd_ioctl.c @@ -448,7 +448,14 @@ dasd_ioctl(struct inode *inode, struct file *file, case DASDAPIVER: return dasd_ioctl_api_version(argp); default: - /* resort to the deprecated dynamic ioctl list */ + /* if the discipline has an ioctl method try it. */ + if (device->discipline->ioctl) { + int rval = device->discipline->ioctl(device, cmd, argp); + if (rval != -ENOIOCTLCMD) + return rval; + } + + /* else resort to the deprecated dynamic ioctl list */ list_for_each_entry(ioctl, &dasd_ioctl_list, list) { if (ioctl->no == cmd) { /* Found a matching ioctl. Call it. */ |
