net: batman-adv: fix error handling
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.9.289 by commit 07533f1a673ce1126d0a72ef1e4b5eaaa3dd6d20, it was introduced in version v2.6.38 by commit c6c8fea29769d998d94fcec9b9f14d4b52b349d3. For more details please see the references link.