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tcp: md5: Handle RCU dereference of md5sig_info
Dereference tp->md5sig_info in tcp_v4_destroy_sock() the same way it is done in the adjacent call to tcp_clear_md5_list(). Resolves this sparse warning: net/ipv4/tcp_ipv4.c:1914:17: warning: incorrect type in argument 1 (different address spaces) net/ipv4/tcp_ipv4.c:1914:17: expected struct callback_head *head net/ipv4/tcp_ipv4.c:1914:17: got struct callback_head [noderef] <asn:4>*<noident> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Acked-by: Christoph Paasch <cpaasch@apple.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1911,7 +1911,7 @@ void tcp_v4_destroy_sock(struct sock *sk)
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/* Clean up the MD5 key list, if any */
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if (tp->md5sig_info) {
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tcp_clear_md5_list(sk);
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kfree_rcu(tp->md5sig_info, rcu);
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kfree_rcu(rcu_dereference_protected(tp->md5sig_info, 1), rcu);
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tp->md5sig_info = NULL;
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}
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#endif
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