diff options
Diffstat (limited to 'arch/i386/kernel/cpu/cpufreq/powernow-k8.c')
| -rw-r--r-- | arch/i386/kernel/cpu/cpufreq/powernow-k8.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c index e5bc06480ff9..1e70823e1cb5 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c @@ -40,6 +40,7 @@ #ifdef CONFIG_X86_POWERNOW_K8_ACPI #include <linux/acpi.h> +#include <linux/mutex.h> #include <acpi/processor.h> #endif @@ -49,7 +50,7 @@ #include "powernow-k8.h" /* serialize freq changes */ -static DECLARE_MUTEX(fidvid_sem); +static DEFINE_MUTEX(fidvid_mutex); static struct powernow_k8_data *powernow_data[NR_CPUS]; @@ -943,17 +944,17 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi if (cpufreq_frequency_table_target(pol, data->powernow_table, targfreq, relation, &newstate)) goto err_out; - down(&fidvid_sem); + mutex_lock(&fidvid_mutex); powernow_k8_acpi_pst_values(data, newstate); if (transition_frequency(data, newstate)) { printk(KERN_ERR PFX "transition frequency failed\n"); ret = 1; - up(&fidvid_sem); + mutex_unlock(&fidvid_mutex); goto err_out; } - up(&fidvid_sem); + mutex_unlock(&fidvid_mutex); pol->cur = find_khz_freq_from_fid(data->currfid); ret = 0; |