cpufreq: Add new helper cpufreq_table_validate_and_show()

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Almost every cpufreq driver is required to validate its frequency table with:
cpufreq_frequency_table_cpuinfo() and then expose it to cpufreq core with:
cpufreq_frequency_table_get_attr().

This patch creates another helper routine cpufreq_table_validate_and_show() that
will do both these steps in a single call and will return 0 for success, error
otherwise.

This also fixes potential bugs in cpufreq drivers where people have called
cpufreq_frequency_table_get_attr() before calling
cpufreq_frequency_table_cpuinfo(), as the later may fail.

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

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Viresh Kumar 2013-09-16 18:56:03 +05:30 • committed by Rafael J. Wysocki

parent 15c03dd485

commit 27047a6036

2 changed files with 14 additions and 0 deletions

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12

drivers/cpufreq/freq_table.c

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2

include/linux/cpufreq.h

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