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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2017-05-23 09:32:11 +0530 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-06-22 03:15:30 +0200 |
| commit | 478256bddb0323898694bd22acdf42a70d4ff024 (patch) | |
| tree | e71235d1e388a265d04708a99ef33fb7c44dad02 /drivers/base/power | |
| parent | c74b32fadc00f2412d86a19295eb867b1a772948 (diff) | |
| download | linux-478256bddb0323898694bd22acdf42a70d4ff024.tar.gz linux-478256bddb0323898694bd22acdf42a70d4ff024.tar.bz2 linux-478256bddb0323898694bd22acdf42a70d4ff024.zip | |
PM / OPP: Don't create copy of regulators unnecessarily
This code was required while the OPP core was managed with help of RCUs,
but not anymore. Get rid of unnecessary alloc/memcpy operations.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/base/power')
| -rw-r--r-- | drivers/base/power/opp/core.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/drivers/base/power/opp/core.c b/drivers/base/power/opp/core.c index c4590fc017ba..5ee7aadf0abf 100644 --- a/drivers/base/power/opp/core.c +++ b/drivers/base/power/opp/core.c @@ -180,7 +180,7 @@ unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev) { struct opp_table *opp_table; struct dev_pm_opp *opp; - struct regulator *reg, **regulators; + struct regulator *reg; unsigned long latency_ns = 0; int ret, i, count; struct { @@ -198,15 +198,9 @@ unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev) if (!count) goto put_opp_table; - regulators = kmalloc_array(count, sizeof(*regulators), GFP_KERNEL); - if (!regulators) - goto put_opp_table; - uV = kmalloc_array(count, sizeof(*uV), GFP_KERNEL); if (!uV) - goto free_regulators; - - memcpy(regulators, opp_table->regulators, count * sizeof(*regulators)); + goto put_opp_table; mutex_lock(&opp_table->lock); @@ -232,15 +226,13 @@ unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev) * isn't freed, while we are executing this routine. */ for (i = 0; i < count; i++) { - reg = regulators[i]; + reg = opp_table->regulators[i]; ret = regulator_set_voltage_time(reg, uV[i].min, uV[i].max); if (ret > 0) latency_ns += ret * 1000; } kfree(uV); -free_regulators: - kfree(regulators); put_opp_table: dev_pm_opp_put_opp_table(opp_table); |