On Thu, Aug 31, 2017 at 10:10:21AM +0200, Alexandre Belloni wrote:
And here is the fallout of the stupid, brainless "fixing" of issues reported by static analysis tools.
This clk_prepare_enable will never fail. If it was going to fail, the platform would never boot to a point were it is able to execute that code. It is really annoying to have so much churn for absolutely 0 benefit.
It may currently be the case that the SoCs you're looking at happen to make this clock essential but that doesn't mean that it's not going to be different in some future SoC, nor that we can't have a software bug that this will detect. Being consistent with our error checking also means that we can spot places where it might practically be a problem more easily, it's even easier if the error checking is there first time but it's still worth it to go back later.