[U-Boot] [PATCH v4] cmd: clk: Handle ENODEV from clk_get_rate

[Ismael Luceno Cortes]

On 18/Mar/2019 13:26, Ismael Luceno wrote:
> clk_get_rate may return -ENODEV if the clock isn't valid.
> 
> Also, make the error cases go through a single path.
> 
> Fixes: ff8eee0330a6 ("cmd: clk: Add trivial implementation of clock dump
> 	for DM")
> 
> Signed-off-by: Ismael Luceno <ismael.luceno at silicon-gears.com>
> Reviewed-by: Matthias Brugger <mbrugger at suse.com>
> Reviewed-by: Marek Vasut <marek.vasut at gmail.com>
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