netns 1/2: don't get/put old netns on CLONE_NEWNET

copy_net_ns() doesn't copy anything, it creates fresh netns, so
get/put of old netns isn't needed.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 4 deletions

diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index e3bebd36f053..4488010d5a52 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -120,10 +120,8 @@ struct net *copy_net_ns(unsigned long flags, struct net *old_net)
         struct net *new_net = NULL;
         int err;
 
-        get_net(old_net);
-
         if (!(flags & CLONE_NEWNET))
-                return old_net;
+                return get_net(old_net);
 
         err = -ENOMEM;
         new_net = net_alloc();
@@ -142,7 +140,6 @@ struct net *copy_net_ns(unsigned long flags, struct net *old_net)
         if (err)
                 goto out_free;
 out:
-        put_net(old_net);
         return new_net;
 
 out_free: