> From: Hongchao Zhang <hongchao.zh...@intel.com>
> 
> 1, in client_import_del_conn, the export returned from
>    class_conn2export is not released after using it.
> 
> 2, in ptlrpc_connect_interpret, the export is not released
>    if the connect_flags isn't compatible.

Reviewed-by: James Simmons <jsimm...@infradead.org>
 
> Signed-off-by: Hongchao Zhang <hongchao.zh...@intel.com>
> Reviewed-on: http://review.whamcloud.com/22031
> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8500
> Reviewed-by: James Simmons <uja.o...@yahoo.com>
> Reviewed-by: Bobi Jam <bobi...@hotmail.com>
> Signed-off-by: Oleg Drokin <gr...@linuxhacker.ru>
> ---
>  drivers/staging/lustre/lustre/ldlm/ldlm_lib.c |  3 +++
>  drivers/staging/lustre/lustre/ptlrpc/import.c | 19 ++++++++++---------
>  2 files changed, 13 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c 
> b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
> index 4f9480e..06d3cc6 100644
> --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
> +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
> @@ -170,6 +170,9 @@ int client_import_del_conn(struct obd_import *imp, struct 
> obd_uuid *uuid)
>                               ptlrpc_connection_put(dlmexp->exp_connection);
>                               dlmexp->exp_connection = NULL;
>                       }
> +
> +                     if (dlmexp)
> +                             class_export_put(dlmexp);
>               }
>  
>               list_del(&imp_conn->oic_item);
> diff --git a/drivers/staging/lustre/lustre/ptlrpc/import.c 
> b/drivers/staging/lustre/lustre/ptlrpc/import.c
> index 46ba5a4..05fd92d 100644
> --- a/drivers/staging/lustre/lustre/ptlrpc/import.c
> +++ b/drivers/staging/lustre/lustre/ptlrpc/import.c
> @@ -972,6 +972,16 @@ static int ptlrpc_connect_interpret(const struct lu_env 
> *env,
>  
>       spin_unlock(&imp->imp_lock);
>  
> +     if (!exp) {
> +             /* This could happen if export is cleaned during the
> +              * connect attempt
> +              */
> +             CERROR("%s: missing export after connect\n",
> +                    imp->imp_obd->obd_name);
> +             rc = -ENODEV;
> +             goto out;
> +     }
> +
>       /* check that server granted subset of flags we asked for. */
>       if ((ocd->ocd_connect_flags & imp->imp_connect_flags_orig) !=
>           ocd->ocd_connect_flags) {
> @@ -982,15 +992,6 @@ static int ptlrpc_connect_interpret(const struct lu_env 
> *env,
>               goto out;
>       }
>  
> -     if (!exp) {
> -             /* This could happen if export is cleaned during the
> -              * connect attempt
> -              */
> -             CERROR("%s: missing export after connect\n",
> -                    imp->imp_obd->obd_name);
> -             rc = -ENODEV;
> -             goto out;
> -     }
>       old_connect_flags = exp_connect_flags(exp);
>       exp->exp_connect_data = *ocd;
>       imp->imp_obd->obd_self_export->exp_connect_data = *ocd;
> -- 
> 2.7.4
> 
> 
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