dccp: Fix memleak in __feat_register_sp
commit 1d3ff095 upstream. If dccp_feat_push_change fails, we forget free the mem which is alloced by kmemdup in dccp_feat_clone_sp_val. Reported-by: Hulk Robot <hulkci@huawei.com> Fixes: e8ef967a ("dccp: Registration routines for changing feature values") Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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2f62bb92
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