From 45c876bf12b431afa9c438b24bd6f55f3a815805 Mon Sep 17 00:00:00 2001 From: Fenghua Yu Date: Tue, 31 Jul 2007 00:37:26 -0700 Subject: [PATCH] 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 Cc: Venkatesh Pallipadi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c | 4 +--- 1 file changed, 1 insertion(+), 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 */ -- 2.39.5