[PATCH net-next v3 14/16] 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 748e377c7fe3..4f1b38de00ac 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c

@@ -2766,6 +2766,7 @@ 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);
 		}
 	}

-- 
2.29.2