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-rw-r--r--drivers/net/tun.c3
-rw-r--r--include/linux/netdevice.h3
-rw-r--r--net/core/dev.c6
3 files changed, 9 insertions, 3 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 0d9b7778f7a5..b45eea135b68 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1684,6 +1684,9 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
if (!dev)
return -ENOMEM;
+ err = dev_get_valid_name(net, dev, name);
+ if (err)
+ goto err_free_dev;
dev_net_set(dev, net);
dev->rtnl_link_ops = &tun_link_ops;
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 4035bbe40971..fc54049e8286 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3469,6 +3469,9 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
unsigned char name_assign_type,
void (*setup)(struct net_device *),
unsigned int txqs, unsigned int rxqs);
+int dev_get_valid_name(struct net *net, struct net_device *dev,
+ const char *name);
+
#define alloc_netdev(sizeof_priv, name, name_assign_type, setup) \
alloc_netdev_mqs(sizeof_priv, name, name_assign_type, setup, 1, 1)
diff --git a/net/core/dev.c b/net/core/dev.c
index dac52fa60f25..630704d8d6a2 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1111,9 +1111,8 @@ static int dev_alloc_name_ns(struct net *net,
return ret;
}
-static int dev_get_valid_name(struct net *net,
- struct net_device *dev,
- const char *name)
+int dev_get_valid_name(struct net *net, struct net_device *dev,
+ const char *name)
{
BUG_ON(!net);
@@ -1129,6 +1128,7 @@ static int dev_get_valid_name(struct net *net,
return 0;
}
+EXPORT_SYMBOL(dev_get_valid_name);
/**
* dev_change_name - change name of a device