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cpufreq: interactive: make sure governor is ready for task boost

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enqueue_task() may call cpufreq_task_boost() before governor is initial,
so enable_sem and speedchange_task is not initial, then do not boost.

Fixes: 2d367d61e8 (cpufreq: interactive: introduce boost cpufreq interface for task)
Change-Id: I68ec027299fa46e7749efd43b44af6e476753ac5
Signed-off-by: Liang Chen <cl@rock-chips.com>
This commit is contained in:
Liang Chen 2020-07-28 17:12:44 +08:00
parent 5229082f0f
commit 1669d97751
1 changed files with 3 additions and 0 deletions
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3
drivers/cpufreq/cpufreq_interactive.c
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@ -1417,6 +1417,9 @@ void cpufreq_task_boost(int cpu, unsigned long util)
struct interactive_policy *ipolicy = pcpu->ipolicy;
unsigned long cap, min_util;
if (!speedchange_task)
return;
if (!down_read_trylock(&pcpu->enable_sem))
return;