diff options
Diffstat (limited to 'drivers/acpi/processor_thermal.c')
| -rw-r--r-- | drivers/acpi/processor_thermal.c | 47 |
1 files changed, 22 insertions, 25 deletions
diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c index 641b5450a0d..e003663b2f8 100644 --- a/drivers/acpi/processor_thermal.c +++ b/drivers/acpi/processor_thermal.c @@ -30,12 +30,9 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/cpufreq.h> - -#include <asm/uaccess.h> - -#include <acpi/acpi_bus.h> +#include <linux/acpi.h> #include <acpi/processor.h> -#include <acpi/acpi_drivers.h> +#include <asm/uaccess.h> #define PREFIX "ACPI: " @@ -186,26 +183,14 @@ static int cpufreq_set_cur_state(unsigned int cpu, int state) #endif -int acpi_processor_get_limit_info(struct acpi_processor *pr) -{ - - if (!pr) - return -EINVAL; - - if (pr->flags.throttling) - pr->flags.limit = 1; - - return 0; -} - -/* thermal coolign device callbacks */ +/* thermal cooling device callbacks */ static int acpi_processor_max_state(struct acpi_processor *pr) { int max_state = 0; /* * There exists four states according to - * cpufreq_thermal_reduction_ptg. 0, 1, 2, 3 + * cpufreq_thermal_reduction_pctg. 0, 1, 2, 3 */ max_state += cpufreq_get_max_state(pr->id); if (pr->flags.throttling) @@ -218,9 +203,13 @@ processor_get_max_state(struct thermal_cooling_device *cdev, unsigned long *state) { struct acpi_device *device = cdev->devdata; - struct acpi_processor *pr = acpi_driver_data(device); + struct acpi_processor *pr; + + if (!device) + return -EINVAL; - if (!device || !pr) + pr = acpi_driver_data(device); + if (!pr) return -EINVAL; *state = acpi_processor_max_state(pr); @@ -232,9 +221,13 @@ processor_get_cur_state(struct thermal_cooling_device *cdev, unsigned long *cur_state) { struct acpi_device *device = cdev->devdata; - struct acpi_processor *pr = acpi_driver_data(device); + struct acpi_processor *pr; - if (!device || !pr) + if (!device) + return -EINVAL; + + pr = acpi_driver_data(device); + if (!pr) return -EINVAL; *cur_state = cpufreq_get_cur_state(pr->id); @@ -248,11 +241,15 @@ processor_set_cur_state(struct thermal_cooling_device *cdev, unsigned long state) { struct acpi_device *device = cdev->devdata; - struct acpi_processor *pr = acpi_driver_data(device); + struct acpi_processor *pr; int result = 0; int max_pstate; - if (!device || !pr) + if (!device) + return -EINVAL; + + pr = acpi_driver_data(device); + if (!pr) return -EINVAL; max_pstate = cpufreq_get_max_state(pr->id); |
