cnic: Update the rcu_access_pointer() usages
authorTej Parkash <tej.parkash@qlogic.com>
Tue, 28 Oct 2014 05:18:15 +0000 (01:18 -0400)
committerDavid S. Miller <davem@davemloft.net>
Wed, 29 Oct 2014 19:07:28 +0000 (15:07 -0400)
1. Remove the rcu_read_lock/unlock around rcu_access_pointer
2. Replace the rcu_dereference with rcu_access_pointer

Signed-off-by: Tej Parkash <tej.parkash@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/broadcom/cnic.c

index 23f23c9..f05fab6 100644 (file)
@@ -382,10 +382,8 @@ static int cnic_iscsi_nl_msg_recv(struct cnic_dev *dev, u32 msg_type,
                if (l5_cid >= MAX_CM_SK_TBL_SZ)
                        break;
 
-               rcu_read_lock();
                if (!rcu_access_pointer(cp->ulp_ops[CNIC_ULP_L4])) {
                        rc = -ENODEV;
-                       rcu_read_unlock();
                        break;
                }
                csk = &cp->csk_tbl[l5_cid];
@@ -414,7 +412,6 @@ static int cnic_iscsi_nl_msg_recv(struct cnic_dev *dev, u32 msg_type,
                        }
                }
                csk_put(csk);
-               rcu_read_unlock();
                rc = 0;
        }
        }
@@ -615,7 +612,7 @@ static int cnic_unregister_device(struct cnic_dev *dev, int ulp_type)
                cnic_send_nlmsg(cp, ISCSI_KEVENT_IF_DOWN, NULL);
 
        mutex_lock(&cnic_lock);
-       if (rcu_dereference(cp->ulp_ops[ulp_type])) {
+       if (rcu_access_pointer(cp->ulp_ops[ulp_type])) {
                RCU_INIT_POINTER(cp->ulp_ops[ulp_type], NULL);
                cnic_put(dev);
        } else {