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-rw-r--r--drivers/acpi/processor_perflib.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index abbdb37a7f5f..f36db22ce1ae 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -577,6 +577,8 @@ acpi_processor_register_performance(struct acpi_processor_performance
return_VALUE(-EBUSY);
}
+ WARN_ON(!performance);
+
pr->performance = performance;
if (acpi_processor_get_performance_info(pr)) {
@@ -609,7 +611,8 @@ acpi_processor_unregister_performance(struct acpi_processor_performance
return_VOID;
}
- kfree(pr->performance->states);
+ if (pr->performance)
+ kfree(pr->performance->states);
pr->performance = NULL;
acpi_cpufreq_remove_file(pr);