diff options
| author | Bo Liu <liubo03@inspur.com> | 2022-06-22 00:56:51 -0400 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2022-06-27 13:57:08 -0600 |
| commit | a13b1e472b93f69c35976351e59831564ed6a376 (patch) | |
| tree | 0756d3f22daf455cec9214cae4df92e05ae064b5 /drivers/vfio/vfio.c | |
| parent | d1877e639bc6bf1c3131eda3f9ede73f8da96c22 (diff) | |
| download | linux-a13b1e472b93f69c35976351e59831564ed6a376.tar.bz2 | |
vfio: check vfio_register_iommu_driver() return value
As vfio_register_iommu_driver() can fail, we should check the return value.
Signed-off-by: Bo Liu <liubo03@inspur.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Link: https://lore.kernel.org/r/20220622045651.5416-1-liubo03@inspur.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio/vfio.c')
| -rw-r--r-- | drivers/vfio/vfio.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index 61e71c1154be..8f435c0d7748 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -2156,13 +2156,17 @@ static int __init vfio_init(void) if (ret) goto err_alloc_chrdev; - pr_info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); - #ifdef CONFIG_VFIO_NOIOMMU - vfio_register_iommu_driver(&vfio_noiommu_ops); + ret = vfio_register_iommu_driver(&vfio_noiommu_ops); #endif + if (ret) + goto err_driver_register; + + pr_info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); return 0; +err_driver_register: + unregister_chrdev_region(vfio.group_devt, MINORMASK + 1); err_alloc_chrdev: class_destroy(vfio.class); vfio.class = NULL; |