cpufreq: conservative: fix requested_freq reduction issue

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When decreasing frequency, requested_freq may be less than
freq_target, So requested_freq minus freq_target may be negative,
But reqested_freq's unit is unsigned int, then the negative result
will be one larger interger which may be even higher than
requested_freq.

This patch is to fix such issue. when result becomes negative,
set requested_freq as the min value of policy.

Signed-off-by: Xiaoguang Chen <chenxg@marvell.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

...

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Xiaoguang Chen 2013-11-07 10:28:50 +08:00 • committed by Rafael J. Wysocki

parent fbbcdc0744

commit 3baa976ae6

1 changed files with 6 additions and 1 deletions

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drivers/cpufreq/cpufreq_conservative.c

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