RE: [PATCH] RDMA/cma: add missed unregister_pernet_subsys in init failure

[Parav Pandit]

> From: linux-kernel-owner@xxxxxxxxxxxxxxx <linux-kernel-
> owner@xxxxxxxxxxxxxxx> On Behalf Of Chuhong Yuan
> Sent: Thursday, December 5, 2019 10:07 AM
> The driver forgets to call unregister_pernet_subsys() in the error path of
> cma_init().
> Add the missed call to fix it.
> 
> Signed-off-by: Chuhong Yuan <hslester96@xxxxxxxxx>
> ---
>  drivers/infiniband/core/cma.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
> index 25f2b70fd8ef..43a6f07e0afe 100644
> --- a/drivers/infiniband/core/cma.c
> +++ b/drivers/infiniband/core/cma.c
> @@ -4763,6 +4763,7 @@ static int __init cma_init(void)
>  err:
>  	unregister_netdevice_notifier(&cma_nb);
>  	ib_sa_unregister_client(&sa_client);
> +	unregister_pernet_subsys(&cma_pernet_operations);
>  err_wq:
>  	destroy_workqueue(cma_wq);
>  	return ret;
> --
> 2.24.0
Please add to commit log.

Fixes: 4be74b42a6d0 ("IB/cma: Separate port allocation to network namespaces ") 

Reviewed-by: Parav Pandit <parav@xxxxxxxxxxxx>