GSD-2021-1002206 net: batman-adv: fix error handling

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 v5.15 by commit 6f68cd634856f8ca93bafd623ba5357e0f648c68, it...