UVI-2021-1000712 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 v4.4.272 by commit a3536dce5895f714d9eead8afb92629a3fb5875b...