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authorDirk Brandewie <dirk.j.brandewie@intel.com>2014-10-13 17:37:42 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-10-23 22:59:59 +0200
commitc034871712730a33e0267095f48b62eae958499c (patch)
tree5afe8d3fd20dbd8974a80de19dea5e0a449c47dd
parentcpufreq: intel_pstate: Reflect current no_turbo state correctly (diff)
downloadlinux-c034871712730a33e0267095f48b62eae958499c.tar.xz
linux-c034871712730a33e0267095f48b62eae958499c.zip
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 <liquid.acid@gmx.net> Cc: All applicable <stable@vger.kernel.org> Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/cpufreq/intel_pstate.c6
1 files 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)