cpufreq: Return index from cpufreq_frequency_table_target()
This routine can't fail unless the frequency table is invalid and
doesn't contain any valid entries.
Make it return the index and WARN() in case it is used for an invalid
table.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/Documentation/cpu-freq/cpu-drivers.txt b/Documentation/cpu-freq/cpu-drivers.txt
index 74e812f..772b94f 100644
--- a/Documentation/cpu-freq/cpu-drivers.txt
+++ b/Documentation/cpu-freq/cpu-drivers.txt
@@ -245,12 +245,11 @@
int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
unsigned int target_freq,
- unsigned int relation,
- unsigned int *index);
+ unsigned int relation);
is the corresponding frequency table helper for the ->target
-stage. Just pass the values to this function, and the unsigned int
-index returns the number of the frequency table entry which contains
+stage. Just pass the values to this function, and this function
+returns the number of the frequency table entry which contains
the frequency the CPU shall be set to.
The following macros can be used as iterators over cpufreq_frequency_table: