On Thu, Apr 22, 2021 at 03:40:30AM +0530, Amey Narkhede wrote:
> If device registration fails, remove sysfs attribute
> and if setting bus callbacks fails, unregister the device
> and cleanup the sysfs attribute.
>
> Signed-off-by: Amey Narkhede <ameynarkhede03@xxxxxxxxx>
> ---
> drivers/iommu/arm/arm-smmu/qcom_iommu.c | 14 ++++++++++++--
> 1 file changed, 12 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/iommu/arm/arm-smmu/qcom_iommu.c b/drivers/iommu/arm/arm-smmu/qcom_iommu.c
> index 4294abe389b2..5fa128a1f7f0 100644
> --- a/drivers/iommu/arm/arm-smmu/qcom_iommu.c
> +++ b/drivers/iommu/arm/arm-smmu/qcom_iommu.c
> @@ -850,10 +850,12 @@ static int qcom_iommu_device_probe(struct platform_device *pdev)
> ret = iommu_device_register(&qcom_iommu->iommu, &qcom_iommu_ops, dev);
> if (ret) {
> dev_err(dev, "Failed to register iommu\n");
> - return ret;
> + goto err_sysfs_remove;
> }
>
> - bus_set_iommu(&platform_bus_type, &qcom_iommu_ops);
> + ret = bus_set_iommu(&platform_bus_type, &qcom_iommu_ops);
> + if (ret)
> + goto err_unregister_device;
>
> if (qcom_iommu->local_base) {
> pm_runtime_get_sync(dev);
> @@ -862,6 +864,14 @@ static int qcom_iommu_device_probe(struct platform_device *pdev)
> }
>
> return 0;
> +
> +err_unregister_device:
> + iommu_device_unregister(&qcom_iommu->iommu);
> +
> +err_sysfs_remove:
> + iommu_device_sysfs_remove(&qcom_iommu->iommu);
> +
> + return ret;
It looks like we're also missing this logic in arm-smmu/arm-smmu.c and
arm-smmu-v3/arm-smmu-v3.c. Would you be able to fix those up too, please?
Will
