netlabel: remove dev_put() calls

Use dev_get_by_name_rcu() to avoid dev_put() calls,
in sections already inside a rcu_read_lock()

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 4 deletions

diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index fb357f01018..3dfe2bac862 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -472,13 +472,12 @@ int netlbl_unlhsh_add(struct net *net,
 
         rcu_read_lock();
         if (dev_name != NULL) {
-                dev = dev_get_by_name(net, dev_name);
+                dev = dev_get_by_name_rcu(net, dev_name);
                 if (dev == NULL) {
                         ret_val = -ENODEV;
                         goto unlhsh_add_return;
                 }
                 ifindex = dev->ifindex;
-                dev_put(dev);
                 iface = netlbl_unlhsh_search_iface(ifindex);
         } else {
                 ifindex = 0;
@@ -737,13 +736,12 @@ int netlbl_unlhsh_remove(struct net *net,
 
         rcu_read_lock();
         if (dev_name != NULL) {
-                dev = dev_get_by_name(net, dev_name);
+                dev = dev_get_by_name_rcu(net, dev_name);
                 if (dev == NULL) {
                         ret_val = -ENODEV;
                         goto unlhsh_remove_return;
                 }
                 iface = netlbl_unlhsh_search_iface(dev->ifindex);
-                dev_put(dev);
         } else
                 iface = rcu_dereference(netlbl_unlhsh_def);
         if (iface == NULL) {