[PATCH 02/02] RDMA/nes: listener destroyed during loopback setup crash

[Faisal Latif <faisal.latif-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>]

When listener is destroyed and where is MPA response pending for
loopback connection, the active side cm_node gets destroyed in
cm_event_connect_error() and again in nes_accept()/nes_reject().
Incrementing cm_node's refcount to not be destroyed by cm_event_connect_error().

Signed-off-by: Faisal Latif <faisal.latif-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
 drivers/infiniband/hw/nes/nes_cm.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index debd92c..2a49ee4 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -1011,9 +1011,10 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
 					event.cm_info.loc_port =
 							 loopback->loc_port;
 					event.cm_info.cm_id = loopback->cm_id;
+					add_ref_cm_node(loopback);
+					loopback->state = NES_CM_STATE_CLOSED;
 					cm_event_connect_error(&event);
 					cm_node->state = NES_CM_STATE_LISTENER_DESTROYED;
-					loopback->state = NES_CM_STATE_CLOSED;
 
 					rem_ref_cm_node(cm_node->cm_core,
 							 cm_node);
-- 
1.5.3.3

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