cpufreq: SPEAr: clk_round_rate() can return a zero upon error

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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.

Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Paul Walmsley 2013-11-25 18:04:34 -08:00 • committed by Rafael J. Wysocki

parent 2209b0c964

commit 189c9b8d92

1 changed files with 1 additions and 1 deletions

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drivers/cpufreq/spear-cpufreq.c

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