iommu/exynos: Clean up bus_set_iommu()

Stop calling bus_set_iommu() since it's now unnecessary, and simplify
the init failure path accordingly.

Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/d7477ef546479300217ca7bccb44da8b02715a07.1660572783.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 8e18984a0c4ff13d211da0ebdf26c467e58f9161..45fd4850bacbdbc53d58faa0f87da6ed50563236 100644 (file)
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -1446,16 +1446,7 @@ static int __init exynos_iommu_init(void)
                goto err_zero_lv2;
        }
 
-       ret = bus_set_iommu(&platform_bus_type, &exynos_iommu_ops);
-       if (ret) {
-               pr_err("%s: Failed to register exynos-iommu driver.\n",
-                                                               __func__);
-               goto err_set_iommu;
-       }
-
        return 0;
-err_set_iommu:
-       kmem_cache_free(lv2table_kmem_cache, zero_lv2_table);
 err_zero_lv2:
        platform_driver_unregister(&exynos_sysmmu_driver);
 err_reg_driver: