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-rw-r--r--net/core/netdev-genl.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/net/core/netdev-genl.c b/net/core/netdev-genl.c
index dae9f0d432fb..a877693fecd6 100644
--- a/net/core/netdev-genl.c
+++ b/net/core/netdev-genl.c
@@ -979,14 +979,25 @@ void netdev_nl_sock_priv_destroy(struct netdev_nl_sock *priv)
{
struct net_devmem_dmabuf_binding *binding;
struct net_devmem_dmabuf_binding *temp;
+ netdevice_tracker dev_tracker;
struct net_device *dev;
mutex_lock(&priv->lock);
list_for_each_entry_safe(binding, temp, &priv->bindings, list) {
+ mutex_lock(&binding->lock);
dev = binding->dev;
+ if (!dev) {
+ mutex_unlock(&binding->lock);
+ net_devmem_unbind_dmabuf(binding);
+ continue;
+ }
+ netdev_hold(dev, &dev_tracker, GFP_KERNEL);
+ mutex_unlock(&binding->lock);
+
netdev_lock(dev);
net_devmem_unbind_dmabuf(binding);
netdev_unlock(dev);
+ netdev_put(dev, &dev_tracker);
}
mutex_unlock(&priv->lock);
}