cxgb4i : remove spurious use of rcu

As pointed out by the intel guys, there is no need to hold rcu read lock in
cxgbi_inet6addr_handler(), this patch removes it.

Fixes: 759a0cc5a3e1 ("cxgb4i: Add ipv6 code to driver, call into libcxgbi ipv6 api")
Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 9 deletions

diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
index a4a4e98effdd..d31f9e600639 100644
--- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
+++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
@@ -1646,25 +1646,22 @@ static int cxgbi_inet6addr_handler(struct notifier_block *this,
         struct cxgbi_device *cdev;
         int ret = NOTIFY_DONE;
 
-        rcu_read_lock();
-
         if (event_dev->priv_flags & IFF_802_1Q_VLAN)
                 event_dev = vlan_dev_real_dev(event_dev);
 
         cdev = cxgbi_device_find_by_netdev(event_dev, NULL);
-        if (!cdev) {
-                rcu_read_unlock();
+
+        if (!cdev)
                 return ret;
-        }
+
         switch (event) {
         case NETDEV_UP:
                 ret = cxgb4_clip_get(event_dev,
                                      (const struct in6_addr *)
                                      ((ifa)->addr.s6_addr));
-                if (ret < 0) {
-                        rcu_read_unlock();
+                if (ret < 0)
                         return ret;
-                }
+
                 ret = NOTIFY_OK;
                 break;
 
@@ -1679,7 +1676,6 @@ static int cxgbi_inet6addr_handler(struct notifier_block *this,
                 break;
         }
 
-        rcu_read_unlock();
         return ret;
 }