From 43093b941283b1b0c30213fe0f4f6f65c94d2d63 Mon Sep 17 00:00:00 2001 From: Faisal Latif Date: Fri, 12 Feb 2010 19:57:04 +0000 Subject: RDMA/nes: Fix crash when listener destroyed during loopback setup When a listener is destroyed and there is an MPA response pending for loopback connection, the active side cm_node gets destroyed twice: once in cm_event_connect_error() and again in nes_accept()/nes_reject(). Increment the cm_node's refcount so it's not destroyed by cm_event_connect_error(). Signed-off-by: Faisal Latif Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes_cm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/infiniband/hw/nes') diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c index debd92c53d89..2a49ee40b520 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); -- cgit v1.2.1