diff options
| -rw-r--r-- | drivers/acpi/processor_perflib.c | 5 |
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); |