CAN: use dev_get_by_index_rcu

Use new function to avoid doing read_lock().

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 3 deletions

diff --git a/net/can/bcm.c b/net/can/bcm.c
index c302c2ec959c..e32af52238a2 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -139,13 +139,13 @@ static char *bcm_proc_getifname(char *result, int ifindex)
         if (!ifindex)
                 return "any";
 
-        read_lock(&dev_base_lock);
-        dev = __dev_get_by_index(&init_net, ifindex);
+        rcu_read_lock();
+        dev = dev_get_by_index_rcu(&init_net, ifindex);
         if (dev)
                 strcpy(result, dev->name);
         else
                 strcpy(result, "???");
-        read_unlock(&dev_base_lock);
+        rcu_read_unlock();
 
         return result;
 }