diff options
| author | Robin Murphy <robin.murphy@arm.com> | 2022-08-15 19:20:15 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-09-07 15:26:16 +0300 |
| commit | 48a7c5080a28ab5a5a454008965cdd19790c69ae (patch) | |
| tree | 882d5d4b263efeeeb041921410d06c0bc5659195 /drivers/iommu | |
| parent | a24090860e7dfaef096c69cc791db6b281246e88 (diff) | |
| download | linux-48a7c5080a28ab5a5a454008965cdd19790c69ae.tar.xz | |
iommu/tegra-smmu: Clean up bus_set_iommu()
Stop calling bus_set_iommu() since it's now unnecessary, and simplify
the probe failure path accordingly.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/13bb6baa6c4d74e95a12529e4eb1ddfb3885c3b5.1660572783.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/tegra-smmu.c | 29 |
1 files changed, 6 insertions, 23 deletions
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 2a8de975fe63..5b1af40221ec 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -1083,8 +1083,8 @@ struct tegra_smmu *tegra_smmu_probe(struct device *dev, /* * This is a bit of a hack. Ideally we'd want to simply return this - * value. However the IOMMU registration process will attempt to add - * all devices to the IOMMU when bus_set_iommu() is called. In order + * value. However iommu_device_register() will attempt to add + * all devices to the IOMMU before we get that far. In order * not to rely on global variables to track the IOMMU instance, we * set it here so that it can be looked up from the .probe_device() * callback via the IOMMU device's .drvdata field. @@ -1138,32 +1138,15 @@ struct tegra_smmu *tegra_smmu_probe(struct device *dev, return ERR_PTR(err); err = iommu_device_register(&smmu->iommu, &tegra_smmu_ops, dev); - if (err) - goto remove_sysfs; - - err = bus_set_iommu(&platform_bus_type, &tegra_smmu_ops); - if (err < 0) - goto unregister; - -#ifdef CONFIG_PCI - err = bus_set_iommu(&pci_bus_type, &tegra_smmu_ops); - if (err < 0) - goto unset_platform_bus; -#endif + if (err) { + iommu_device_sysfs_remove(&smmu->iommu); + return ERR_PTR(err); + } if (IS_ENABLED(CONFIG_DEBUG_FS)) tegra_smmu_debugfs_init(smmu); return smmu; - -unset_platform_bus: __maybe_unused; - bus_set_iommu(&platform_bus_type, NULL); -unregister: - iommu_device_unregister(&smmu->iommu); -remove_sysfs: - iommu_device_sysfs_remove(&smmu->iommu); - - return ERR_PTR(err); } void tegra_smmu_remove(struct tegra_smmu *smmu) |