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path: root/drivers/iommu/iommu-sysfs.c
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Diffstat (limited to 'drivers/iommu/iommu-sysfs.c')
-rw-r--r--drivers/iommu/iommu-sysfs.c32
1 files changed, 20 insertions, 12 deletions
diff --git a/drivers/iommu/iommu-sysfs.c b/drivers/iommu/iommu-sysfs.c
index c58351ed61c1..36d1a7ce7fc4 100644
--- a/drivers/iommu/iommu-sysfs.c
+++ b/drivers/iommu/iommu-sysfs.c
@@ -62,32 +62,40 @@ int iommu_device_sysfs_add(struct iommu_device *iommu,
va_list vargs;
int ret;
- device_initialize(&iommu->dev);
+ iommu->dev = kzalloc(sizeof(*iommu->dev), GFP_KERNEL);
+ if (!iommu->dev)
+ return -ENOMEM;
- iommu->dev.class = &iommu_class;
- iommu->dev.parent = parent;
- iommu->dev.groups = groups;
+ device_initialize(iommu->dev);
+
+ iommu->dev->class = &iommu_class;
+ iommu->dev->parent = parent;
+ iommu->dev->groups = groups;
va_start(vargs, fmt);
- ret = kobject_set_name_vargs(&iommu->dev.kobj, fmt, vargs);
+ ret = kobject_set_name_vargs(&iommu->dev->kobj, fmt, vargs);
va_end(vargs);
if (ret)
goto error;
- ret = device_add(&iommu->dev);
+ ret = device_add(iommu->dev);
if (ret)
goto error;
+ dev_set_drvdata(iommu->dev, iommu);
+
return 0;
error:
- put_device(&iommu->dev);
+ put_device(iommu->dev);
return ret;
}
void iommu_device_sysfs_remove(struct iommu_device *iommu)
{
- device_unregister(&iommu->dev);
+ dev_set_drvdata(iommu->dev, NULL);
+ device_unregister(iommu->dev);
+ iommu->dev = NULL;
}
/*
* IOMMU drivers can indicate a device is managed by a given IOMMU using
@@ -102,14 +110,14 @@ int iommu_device_link(struct iommu_device *iommu, struct device *link)
if (!iommu || IS_ERR(iommu))
return -ENODEV;
- ret = sysfs_add_link_to_group(&iommu->dev.kobj, "devices",
+ ret = sysfs_add_link_to_group(&iommu->dev->kobj, "devices",
&link->kobj, dev_name(link));
if (ret)
return ret;
- ret = sysfs_create_link_nowarn(&link->kobj, &iommu->dev.kobj, "iommu");
+ ret = sysfs_create_link_nowarn(&link->kobj, &iommu->dev->kobj, "iommu");
if (ret)
- sysfs_remove_link_from_group(&iommu->dev.kobj, "devices",
+ sysfs_remove_link_from_group(&iommu->dev->kobj, "devices",
dev_name(link));
return ret;
@@ -121,5 +129,5 @@ void iommu_device_unlink(struct iommu_device *iommu, struct device *link)
return;
sysfs_remove_link(&link->kobj, "iommu");
- sysfs_remove_link_from_group(&iommu->dev.kobj, "devices", dev_name(link));
+ sysfs_remove_link_from_group(&iommu->dev->kobj, "devices", dev_name(link));
}