Re: [PATCH] cpufreq: omap: clk_round_rate() can return a zero uponerror

From: Santosh Shilimkar
Date: Mon Dec 16 2013 - 09:59:14 EST


On Monday 09 December 2013 09:18 PM, Paul Walmsley wrote:
>
> Treat both negative and zero return values from clk_round_rate() as errors. This is needed since subsequent patches will convert clk_round_rate()'s return value to be an unsigned type, rather than a signed type, since some clock sources can generate rates higher than (2^31)-1 Hz.
>
> Eventually, when calling clk_round_rate(), only a return value of
> zero will be considered a error. All other values will be
> considered valid rates. The comparison against values less than
> 0 is kept to preserve the correct behavior in the meantime.
>
> This patch also removes a bogus usage of IS_ERR_VALUE(), which is intended to be used only on combination pointer/error code return values; a side-benefit.
>
> Signed-off-by: Paul Walmsley <pwalmsley@xxxxxxxxxx>
> Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
> Cc: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
> ---
Acked-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>


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