pinctrl: ralink: Check for null return of devm_kcalloc
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 v4.19.254 by commit 13596e6c9e541e90e5fc2c52b23f08b951370da9, it was introduced in version v4.18 by commit a86854d0c599b3202307abceb68feee4d7061578. For more details please see the references link.