x86, arch/x86/kernel/io_apic_32.c: use kzalloc instead of kmalloc/memset

1) replace kmalloc/memset with equivalent kzalloc.

Signed-off-by: Christophe Jaillet <jaillet.christophe@wanadoo.fr>
Cc: cj <jaillet.christophe@wanadoo.fr>
Cc: petero2@telia.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 3 insertions, 6 deletions

diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index 9a924ebcd74c..e22cbfbce049 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -702,14 +702,12 @@ static int __init balanced_irq_init(void)
                 physical_balance = 1;
 
         for_each_online_cpu(i) {
-                irq_cpu_data[i].irq_delta = kmalloc(sizeof(unsigned long) * NR_IRQS, GFP_KERNEL);
-                irq_cpu_data[i].last_irq = kmalloc(sizeof(unsigned long) * NR_IRQS, GFP_KERNEL);
+                irq_cpu_data[i].irq_delta = kzalloc(sizeof(unsigned long) * NR_IRQS, GFP_KERNEL);
+                irq_cpu_data[i].last_irq = kzalloc(sizeof(unsigned long) * NR_IRQS, GFP_KERNEL);
                 if (irq_cpu_data[i].irq_delta == NULL || irq_cpu_data[i].last_irq == NULL) {
                         printk(KERN_ERR "balanced_irq_init: out of memory");
                         goto failed;
                 }
-                memset(irq_cpu_data[i].irq_delta, 0, sizeof(unsigned long) * NR_IRQS);
-                memset(irq_cpu_data[i].last_irq, 0, sizeof(unsigned long) * NR_IRQS);
         }
 
         printk(KERN_INFO "Starting balanced_irq\n");
@@ -2382,12 +2380,11 @@ static int __init ioapic_init_sysfs(void)
         for (i = 0; i < nr_ioapics; i++) {
                 size = sizeof(struct sys_device) + nr_ioapic_registers[i]
                         * sizeof(struct IO_APIC_route_entry);
-                mp_ioapic_data[i] = kmalloc(size, GFP_KERNEL);
+                mp_ioapic_data[i] = kzalloc(size, GFP_KERNEL);
                 if (!mp_ioapic_data[i]) {
                         printk(KERN_ERR "Can't suspend/resume IOAPIC %d\n", i);
                         continue;
                 }
-                memset(mp_ioapic_data[i], 0, size);
                 dev = &mp_ioapic_data[i]->dev;
                 dev->id = i;
                 dev->cls = &ioapic_sysdev_class;