UVI-2021-1000720 net: caif: add proper error handling

net: caif: add proper 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 v4.9.272 by commit 4f6da6c526a0bf470536b59fdb219d11336e390e...