[PATCH net-next v4 13/13] net: NULL the old xps map entries when freeing them

In __netif_set_xps_queue, old map entries from the old dev_maps are
freed but their corresponding entry in the old dev_maps aren't NULLed.
Fix this.

Signed-off-by: Antoine Tenart <atenart@kernel.org>
---
 net/core/dev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/core/dev.c b/net/core/dev.c
index d5f6ba209f1e..4961fc2e9b19 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c

@@ -2764,6 +2764,7 @@ int __netif_set_xps_queue(struct net_device *dev, const unsigned long *mask,
 					continue;
 			}
 
+			RCU_INIT_POINTER(dev_maps->attr_map[tci], NULL);
 			kfree_rcu(map, rcu);
 		}
 	}

-- 
2.30.2