NTB: Fix dereference before check

Remove early dereference of a pointer that is checked later in the code.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>

diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index bc556e2..1c6386d 100644 (file)
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -1692,7 +1692,6 @@ EXPORT_SYMBOL_GPL(ntb_transport_create_queue);
  */
 void ntb_transport_free_queue(struct ntb_transport_qp *qp)
 {
-       struct ntb_transport_ctx *nt = qp->transport;
        struct pci_dev *pdev;
        struct ntb_queue_entry *entry;
        u64 qp_bit;
@@ -1745,7 +1744,7 @@ void ntb_transport_free_queue(struct ntb_transport_qp *qp)
        while ((entry = ntb_list_rm(&qp->ntb_tx_free_q_lock, &qp->tx_free_q)))
                kfree(entry);
 
-       nt->qp_bitmap_free |= qp_bit;
+       qp->transport->qp_bitmap_free |= qp_bit;
 
        dev_info(&pdev->dev, "NTB Transport QP %d freed\n", qp->qp_num);
 }