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i40iw: Fixes for static checker warnings 

Remove NULL check for cm_node->listener in i40iw_accept
as listener is always present at this point.

Remove the check for cm_node->accept_pend and related code
in i40iw_cm_event_connected as the cm_node in this context
is only pertinent to active node and cm_node->accept_pend
is always 0.

This fixes the following smatch warnings,

drivers/infiniband/hw/i40iw/i40iw_cm.c:3691 i40iw_accept()
error: we previously assumed 'cm_node->listener' could be null

drivers/infiniband/hw/i40iw/i40iw_cm.c:4061 i40iw_cm_event_connected()
error: we previously assumed 'cm_node->listener' could be null

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Shiraz Saleem 2017-07-19 13:55:26 -05:00 committed by Doug Ledford
parent 02654b5ae1
commit 83fb1c89e7
1 changed files with 1 additions and 8 deletions
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9
drivers/infiniband/hw/i40iw/i40iw_cm.c
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@ -3687,8 +3687,6 @@ int i40iw_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
cm_node->accelerated = 1;
if (cm_node->accept_pend) {
if (!cm_node->listener)
i40iw_pr_err("cm_node->listener NULL for passive node\n");
atomic_dec(&cm_node->listener->pend_accepts_cnt);
cm_node->accept_pend = 0;
}
@ -4056,12 +4054,7 @@ static void i40iw_cm_event_connected(struct i40iw_cm_event *event)
i40iw_modify_qp(&iwqp->ibqp, &attr, IB_QP_STATE, NULL);
cm_node->accelerated = 1;
if (cm_node->accept_pend) {
if (!cm_node->listener)
i40iw_pr_err("listener is null for passive node\n");
atomic_dec(&cm_node->listener->pend_accepts_cnt);
cm_node->accept_pend = 0;
}
return;
error: