diff options
| -rw-r--r-- | drivers/block/xen-blkfront.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 8bf0cb7..773da7d 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -1450,6 +1450,8 @@ static struct xenbus_driver blkfront = { static int __init xlblk_init(void) { + int ret; + if (!xen_domain()) return -ENODEV; @@ -1459,7 +1461,13 @@ static int __init xlblk_init(void) return -ENODEV; } - return xenbus_register_frontend(&blkfront); + ret = xenbus_register_frontend(&blkfront); + if (ret) { + unregister_blkdev(XENVBD_MAJOR, DEV_NAME); + return ret; + } + + return 0; } module_init(xlblk_init); |
