linux-kernel - [PATCH] [36/45] x86_64: kmalloc + memset conversion to kzalloc

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Message-Id: <20070921204519.2503514EFF@wotan.suse.de>
Date:	Fri, 21 Sep 2007 22:45:19 +0200 (CEST)
From:	Andi Kleen <ak@...e.de>
To:	m.kozlowski@...land.pl, patches@...-64.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] [36/45] x86_64: kmalloc + memset conversion to kzalloc


From: Mariusz Kozlowski <m.kozlowski@...land.pl>

 arch/x86_64/kernel/io_apic.c | 56080 -> 56038 (-42 bytes)

Signed-off-by: Mariusz Kozlowski <m.kozlowski@...land.pl>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Andi Kleen <ak@...e.de>

---

 arch/x86_64/kernel/io_apic.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

Index: linux/arch/x86_64/kernel/io_apic.c
===================================================================
--- linux.orig/arch/x86_64/kernel/io_apic.c
+++ linux/arch/x86_64/kernel/io_apic.c
@@ -1847,7 +1847,7 @@ static struct sysdev_class ioapic_sysdev
 static int __init ioapic_init_sysfs(void)
 {
 	struct sys_device * dev;
-	int i, size, error = 0;
+	int i, size, error;
 
 	error = sysdev_class_register(&ioapic_sysdev_class);
 	if (error)
@@ -1856,12 +1856,11 @@ 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;
-
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