[PATCH 4.19 25/84] iommu: Remove device link to group on failure

[Greg Kroah-Hartman]

From: Jon Derrick <jonathan.derrick@xxxxxxxxx>

commit 7d4e6ccd1fb09dbfbc49746ca82bd5c25ad4bfe4 upstream.

This adds the missing teardown step that removes the device link from
the group when the device addition fails.

Signed-off-by: Jon Derrick <jonathan.derrick@xxxxxxxxx>
Fixes: 797a8b4d768c5 ("iommu: Handle default domain attach failure")
Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/iommu/iommu.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -650,6 +650,7 @@ err_put_group:
 	mutex_unlock(&group->mutex);
 	dev->iommu_group = NULL;
 	kobject_put(group->devices_kobj);
+	sysfs_remove_link(group->devices_kobj, device->name);
 err_free_name:
 	kfree(device->name);
 err_remove_link: