diff options
| -rw-r--r-- | drivers/vfio/vfio.c | 17 |
1 files changed, 1 insertions, 16 deletions
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index 28e2d5b2c0c..fcc12f3e60a 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -139,23 +139,8 @@ EXPORT_SYMBOL_GPL(vfio_unregister_iommu_driver); */ static int vfio_alloc_group_minor(struct vfio_group *group) { - int ret, minor; - -again: - if (unlikely(idr_pre_get(&vfio.group_idr, GFP_KERNEL) == 0)) - return -ENOMEM; - /* index 0 is used by /dev/vfio/vfio */ - ret = idr_get_new_above(&vfio.group_idr, group, 1, &minor); - if (ret == -EAGAIN) - goto again; - if (ret || minor > MINORMASK) { - if (minor > MINORMASK) - idr_remove(&vfio.group_idr, minor); - return -ENOSPC; - } - - return minor; + return idr_alloc(&vfio.group_idr, group, 1, MINORMASK + 1, GFP_KERNEL); } static void vfio_free_group_minor(int minor) |