[PATCH rc v2 1/2] iommufd/fault: Destroy response and mutex in iommufd_fault_destroy()

[Nicolin Chen]

Both were missing in the initial patch.

Fixes: 07838f7fd529 ("iommufd: Add iommufd fault object")
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx>
---
 drivers/iommu/iommufd/fault.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/iommu/iommufd/fault.c b/drivers/iommu/iommufd/fault.c
index 1fe804e28a86..685510224d05 100644
--- a/drivers/iommu/iommufd/fault.c
+++ b/drivers/iommu/iommufd/fault.c
@@ -213,6 +213,7 @@ void iommufd_fault_destroy(struct iommufd_object *obj)
 {
 	struct iommufd_fault *fault = container_of(obj, struct iommufd_fault, obj);
 	struct iopf_group *group, *next;
+	unsigned long index;
 
 	/*
 	 * The iommufd object's reference count is zero at this point.
@@ -225,6 +226,13 @@ void iommufd_fault_destroy(struct iommufd_object *obj)
 		iopf_group_response(group, IOMMU_PAGE_RESP_INVALID);
 		iopf_free_group(group);
 	}
+	xa_for_each(&fault->response, index, group) {
+		xa_erase(&fault->response, index);
+		iopf_group_response(group, IOMMU_PAGE_RESP_INVALID);
+		iopf_free_group(group);
+	}
+	xa_destroy(&fault->response);
+	mutex_destroy(&fault->mutex);
 }
 
 static void iommufd_compose_fault_message(struct iommu_fault *fault,
-- 
2.43.0