iptables: missing free() in function cache_add_entry()

Fixed a memory leak in the error path of function cache_add_entry().

Signed-off-by: Franz Flasch <franz.flasch@frequentis.com>
Signed-off-by: Christian Engelmayer <christian.engelmayer@frequentis.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
1 file changed