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iommu/rockchip: Fix error handling in init 

It's hard to undo bus_set_iommu() in the error path, so move it to the
end of rk_iommu_probe().

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Jeffy Chen 2018-03-23 15:38:12 +08:00 committed by Joerg Roedel
parent 5fd577c3ea
commit 4d88a8a4c3
1 changed files with 2 additions and 13 deletions
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15
drivers/iommu/rockchip-iommu.c
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@ -1133,6 +1133,8 @@ static int rk_iommu_probe(struct platform_device *pdev)
if (!dma_dev)
dma_dev = &pdev->dev;
bus_set_iommu(&platform_bus_type, &rk_iommu_ops);
return 0;
err_remove_sysfs:
iommu_device_sysfs_remove(&iommu->iommu);
@ -1176,19 +1178,6 @@ static struct platform_driver rk_iommu_driver = {
static int __init rk_iommu_init(void)
{
struct device_node *np;
int ret;
np = of_find_matching_node(NULL, rk_iommu_dt_ids);
if (!np)
return 0;
of_node_put(np);
ret = bus_set_iommu(&platform_bus_type, &rk_iommu_ops);
if (ret)
return ret;
return platform_driver_register(&rk_iommu_driver);
}
subsys_initcall(rk_iommu_init);