[PATCH -next] drivers/tty/serial: Add missing clk_disable_unprepare()

[Greg KH]

On Fri, Jun 17, 2022 at 10:58:27AM +0800, Guo Mengqi wrote:
> Add missing clk_disable_unprepare() when get clk rate fails.
> 
> Reported-by: Hulk Robot <hulkci at huawei.com>

How did the robot report it?

How was this tested?

You have read the documentation for how to correctly report problems
found and fixed by automated tools, right?  Please update the changelog
to include all of that information.

thanks,

greg k-h