net: bridge: fix a possible memory leak in __vlan_add
After per-port vlan stats, vlan stats should be released when fail to add vlan Fixes: 9163a0fc ("net: bridge: add support for per-port vlan stats") CC: bridge@lists.linux-foundation.org cc: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> CC: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: NZhang Yu <zhangyu31@baidu.com> Signed-off-by: NLi RongQing <lirongqing@baidu.com> Signed-off-by: NNikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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