RDMA/core: Make FD destroy callback void

All FD object destroy implementations return 0, so declare this callback
void.

Link: https://lore.kernel.org/r/[e-mail]
Reviewed-by: Jason Gunthorpe <[e-mail]>
Signed-off-by: Leon Romanovsky <[e-mail]>
Signed-off-by: Jason Gunthorpe <[e-mail]>

drivers/infiniband/core/rdma_core.c

···
 	const struct uverbs_obj_fd_type *fd_type = container_of(
 		uobj->uapi_object->type_attrs, struct uverbs_obj_fd_type, type);
 
-	return fd_type->destroy_object(uobj, why);
+	fd_type->destroy_object(uobj, why);
+	return 0;
 }
 
 static void remove_handle_fd_uobject(struct ib_uobject *uobj)

drivers/infiniband/core/uverbs_std_types.c

···
 	spin_unlock_irq(&event_queue->lock);
 }
 
-static int
+static void
 uverbs_completion_event_file_destroy_uobj(struct ib_uobject *uobj,
 					  enum rdma_remove_reason why)
 {
···
 			     uobj);
 
 	ib_uverbs_free_event_queue(&file->ev_queue);
-	return 0;
 }
 
 int uverbs_destroy_def_handler(struct uverbs_attr_bundle *attrs)

drivers/infiniband/core/uverbs_std_types_async_fd.c

···
 	return 0;
 }
 
-static int uverbs_async_event_destroy_uobj(struct ib_uobject *uobj,
-					   enum rdma_remove_reason why)
+static void uverbs_async_event_destroy_uobj(struct ib_uobject *uobj,
+					    enum rdma_remove_reason why)
 {
 	struct ib_uverbs_async_event_file *event_file =
 		container_of(uobj, struct ib_uverbs_async_event_file, uobj);
···
 	if (why == RDMA_REMOVE_DRIVER_REMOVE)
 		ib_uverbs_async_handler(event_file, 0, IB_EVENT_DEVICE_FATAL,
 					NULL, NULL);
-	return 0;
 }
 
 int uverbs_async_event_release(struct inode *inode, struct file *filp)

drivers/infiniband/hw/mlx5/devx.c

···
 	.llseek	 = no_llseek,
 };
 
-static int devx_async_cmd_event_destroy_uobj(struct ib_uobject *uobj,
-					     enum rdma_remove_reason why)
+static void devx_async_cmd_event_destroy_uobj(struct ib_uobject *uobj,
+					      enum rdma_remove_reason why)
 {
 	struct devx_async_cmd_event_file *comp_ev_file =
 		container_of(uobj, struct devx_async_cmd_event_file,
···
 		kvfree(entry);
 	}
 	spin_unlock_irq(&comp_ev_file->ev_queue.lock);
-	return 0;
 };
 
-static int devx_async_event_destroy_uobj(struct ib_uobject *uobj,
-					 enum rdma_remove_reason why)
+static void devx_async_event_destroy_uobj(struct ib_uobject *uobj,
+					  enum rdma_remove_reason why)
 {
 	struct devx_async_event_file *ev_file =
 		container_of(uobj, struct devx_async_event_file,
···
 	mutex_unlock(&dev->devx_event_table.event_xa_lock);
 
 	put_device(&dev->ib_dev.dev);
-	return 0;
 };
 
 DECLARE_UVERBS_NAMED_METHOD(

include/rdma/uverbs_types.h

···
 	 * because the driver is removed or the FD is closed.
 	 */
 	struct uverbs_obj_type  type;
-	int (*destroy_object)(struct ib_uobject *uobj,
-			      enum rdma_remove_reason why);
+	void (*destroy_object)(struct ib_uobject *uobj,
+			       enum rdma_remove_reason why);
 	const struct file_operations	*fops;
 	const char			*name;
 	int				flags;