On 21/06/08 10:29AM, Will Deacon wrote:
> 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
Sure, I will send a v2 with this and new patches.
Thanks,
Amey
