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Commit 56892261 authored by Fan Du's avatar Fan Du Committed by David S. Miller
Browse files

xfrm: Use rcu_dereference_bh to deference pointer protected by rcu_read_lock_bh 



Signed-off-by: default avatarFan Du <fan.du@windriver.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 02644a17

net/xfrm/xfrm_policy.c

+2 −2
Original line number Diff line number Diff line
@@ -2501,11 +2501,11 @@ static void __net_init xfrm_dst_ops_init(struct net *net) 
	struct xfrm_policy_afinfo *afinfo;



	rcu_read_lock_bh();

	afinfo = rcu_dereference(xfrm_policy_afinfo[AF_INET]);

	afinfo = rcu_dereference_bh(xfrm_policy_afinfo[AF_INET]);

	if (afinfo)

		net->xfrm.xfrm4_dst_ops = *afinfo->dst_ops;

#if IS_ENABLED(CONFIG_IPV6)

	afinfo = rcu_dereference(xfrm_policy_afinfo[AF_INET6]);

	afinfo = rcu_dereference_bh(xfrm_policy_afinfo[AF_INET6]);

	if (afinfo)

		net->xfrm.xfrm6_dst_ops = *afinfo->dst_ops;

#endif