iio: adc: menz188adc: Fix a resource leak in an error handling path
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 v4.19.232 by commit 53d43a9c8dd224e66559fe86af1e473802c7130e, it was introduced in version v3.15 by commit 74aeac4da66fbfa246edbfc849002eac9b5af9ca. For more details please see the references link.