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Commit ae05368a authored by santosh.shilimkar@oracle.com's avatar santosh.shilimkar@oracle.com Committed by David S. Miller
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RDS: check for valid cm_id before initiating connection 



Connection could have been dropped while the route is being resolved
so check for valid cm_id before initiating the connection.

Reviewed-by: default avatarAjaykumar Hotchandani <ajaykumar.hotchandani@oracle.com>
Signed-off-by: default avatarSantosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: default avatarSantosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 06e8941e

net/rds/rdma_transport.c

+13 −2
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ 
#include <rdma/rdma_cm.h>



#include "rdma_transport.h"

#include "ib.h"



static struct rdma_cm_id *rds_rdma_listen_id;
@@ -82,8 +83,18 @@ int rds_rdma_cm_event_handler(struct rdma_cm_id *cm_id, 
		break;



	case RDMA_CM_EVENT_ROUTE_RESOLVED:

		/* XXX worry about racing with listen acceptance */

		/* Connection could have been dropped so make sure the

		 * cm_id is valid before proceeding

		 */

		if (conn) {

			struct rds_ib_connection *ibic;



			ibic = conn->c_transport_data;

			if (ibic && ibic->i_cm_id == cm_id)

				ret = trans->cm_initiate_connect(cm_id);

			else

				rds_conn_drop(conn);

		}

		break;



	case RDMA_CM_EVENT_ESTABLISHED: