Fix uninitialized local variable "covered" in i386 acpi-cpufreq driver

The local variable "covered" is used without initialization in i386
acpi-cpufreq driver.  The initial value of covered should be 0.  The bug
will cause memory leak when hit.  The following patch fixes this bug.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 3 deletions

diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
index 6f846bee2103..32d04b083e38 100644
--- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -511,7 +511,6 @@ acpi_cpufreq_guess_freq(struct acpi_cpufreq_data *data, unsigned int cpu)
 static int acpi_cpufreq_early_init(void)
 {
         struct acpi_processor_performance *data;
-        cpumask_t covered;
         unsigned int i, j;
 
         dprintk("acpi_cpufreq_early_init\n");
@@ -520,14 +519,13 @@ static int acpi_cpufreq_early_init(void)
                 data = kzalloc(sizeof(struct acpi_processor_performance),
                                GFP_KERNEL);
                 if (!data) {
-                        for_each_cpu_mask(j, covered) {
+                        for_each_possible_cpu(j) {
                                 kfree(acpi_perf_data[j]);
                                 acpi_perf_data[j] = NULL;
                         }
                         return -ENOMEM;
                 }
                 acpi_perf_data[i] = data;
-                cpu_set(i, covered);
         }
 
         /* Do initialization in ACPI core */