diff options
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm-mpath.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index c18358271618..d5d6ef7ba838 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -950,6 +950,19 @@ static struct pgpath *parse_path(struct dm_arg_set *as, struct path_selector *ps q = bdev_get_queue(p->path.dev->bdev); attached_handler_name = scsi_dh_attached_handler_name(q, GFP_KERNEL); + if (IS_ERR(attached_handler_name)) { + if (PTR_ERR(attached_handler_name) == -ENODEV) { + if (m->hw_handler_name) { + DMERR("hardware handlers are only allowed for SCSI devices"); + kfree(m->hw_handler_name); + m->hw_handler_name = NULL; + } + attached_handler_name = NULL; + } else { + r = PTR_ERR(attached_handler_name); + goto bad; + } + } if (attached_handler_name || m->hw_handler_name) { INIT_DELAYED_WORK(&p->activate_path, activate_path_work); r = setup_scsi_dh(p->path.dev->bdev, m, &attached_handler_name, &ti->error); |