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-rw-r--r--kernel/bpf/net_namespace.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/kernel/bpf/net_namespace.c b/kernel/bpf/net_namespace.c
index 3dbc29b6f51d..310241ca7991 100644
--- a/kernel/bpf/net_namespace.c
+++ b/kernel/bpf/net_namespace.c
@@ -43,15 +43,11 @@ static void bpf_netns_link_release(struct bpf_link *link)
enum netns_bpf_attach_type type = net_link->netns_type;
struct net *net;
- /* Link auto-detached by dying netns. */
- if (!net_link->net)
- return;
-
mutex_lock(&netns_bpf_mutex);
- /* Recheck after potential sleep. We can race with cleanup_net
- * here, but if we see a non-NULL struct net pointer pre_exit
- * has not happened yet and will block on netns_bpf_mutex.
+ /* We can race with cleanup_net, but if we see a non-NULL
+ * struct net pointer, pre_exit has not run yet and wait for
+ * netns_bpf_mutex.
*/
net = net_link->net;
if (!net)