netfilter: don't xt_jumpstack_alloc twice in xt_register_table
In xt_register_table, xt_jumpstack_alloc is called first, later xt_replace_table is used. But in xt_replace_table, xt_jumpstack_alloc will be used again. Then the memory allocated by previous xt_jumpstack_alloc will be leaked. We can simply remove the previous xt_jumpstack_alloc because there aren't any users of newinfo between xt_jumpstack_alloc and xt_replace_table. Signed-off-by: NXiaotian Feng <dfeng@redhat.com> Cc: Patrick McHardy <kaber@trash.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jan Engelhardt <jengelh@medozas.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Alexey Dobriyan <adobriyan@gmail.com> Acked-By: NJan Engelhardt <jengelh@medozas.de> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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