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ipv6: fix warning in net/ipv6/ip6_flowlabel.c
this warning: net/ipv6/ip6_flowlabel.c: In function ‘ipv6_flowlabel_opt’: net/ipv6/ip6_flowlabel.c:467: warning: ‘err’ may be used uninitialized in this function triggers because GCC does not recognize the (correct) error flow between fl_create() and 'err'. Annotate it. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -464,7 +464,7 @@ static inline void fl_link(struct ipv6_pinfo *np, struct ipv6_fl_socklist *sfl,
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int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen)
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{
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int err;
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int uninitialized_var(err);
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struct net *net = sock_net(sk);
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struct ipv6_pinfo *np = inet6_sk(sk);
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struct in6_flowlabel_req freq;
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