clkdev: report over-sized strings when creating clkdev entries

[Arnd Bergmann]

On Tue, May 7, 2024, at 09:20, Naresh Kamboju wrote:
> The WinLink E850-96 board boot failed with Linux next-20240506 but there
> is no kernel crash log on the serial [1].
>
> Anders bisection results pointing to this commit,
> # first bad commit:
>   [4d11c62ca8d77cb1f79054844b598e0f4e92dabe]
>   clkdev: report over-sized strings when creating clkdev entrie
>
> After reverting the above patch the boot test passed [2].
>
> Reported-by: Linux Kernel Functional Testing <lkft at linaro.org>
>
> Links:
> [1] - https://lkft.validation.linaro.org/scheduler/job/7546260
> [2] - https://lkft.validation.linaro.org/scheduler/job/7548064

I assume this is an actual overflow that was previously ignored
and is now causing vclkdev_alloc() to fail. Unfortunately this
happens before the console is up, so there is no output. Can
you run the broken version again with 'earlycon' added to the
boot arguments?

      Arnd