A look at the 4.14 development cycle

Most kernel devs think the (void) foo() format is ugly. You're often expected to know what things can't fail. Sometimes they can't fail in the sense that if they do the system won't boot.

To be honest the places, I have seen which use the (void) foo() format are often bad code where it should have been checked but the dev was too lazy to write error handling. Although possibly I am biased since I am looking at static checker warnings and spend most of my day looking at buggy staging code. It's like how a bail bondsman thinks everyone is a crook.