UVI-2021-1000728 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 v4.14.236 by commit 676d6d02de3f6b7f3a072b08d0dda819b09d31d...