From c034871712730a33e0267095f48b62eae958499c Mon Sep 17 00:00:00 2001 From: Dirk Brandewie Date: Mon, 13 Oct 2014 08:37:42 -0700 Subject: [PATCH] intel_pstate: Don't lose sysfs settings during cpu offline The user may have custom settings don't destroy them during suspend. Link: https://bugzilla.kernel.org/show_bug.cgi?id=80651 Reported-by: Tobias Jakobi Cc: All applicable Signed-off-by: Dirk Brandewie Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 5f5f5ed11691..97b349a6f5c7 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -702,7 +702,9 @@ static int intel_pstate_init_cpu(unsigned int cpunum) { struct cpudata *cpu; - all_cpu_data[cpunum] = kzalloc(sizeof(struct cpudata), GFP_KERNEL); + if (!all_cpu_data[cpunum]) + all_cpu_data[cpunum] = kzalloc(sizeof(struct cpudata), + GFP_KERNEL); if (!all_cpu_data[cpunum]) return -ENOMEM; @@ -783,8 +785,6 @@ static void intel_pstate_stop_cpu(struct cpufreq_policy *policy) del_timer_sync(&all_cpu_data[cpu_num]->timer); intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate); - kfree(all_cpu_data[cpu_num]); - all_cpu_data[cpu_num] = NULL; } static int intel_pstate_cpu_init(struct cpufreq_policy *policy) -- 2.20.1