[IA64] replace kmalloc+memset with kzalloc

Replace kmalloc+memset with kzalloc

Signed-off-by: Yan Burman <burman.yan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/pci/pci.c

diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index eb92cef..474d179 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -125,11 +125,10 @@
 {
 	struct pci_controller *controller;
 
-	controller = kmalloc(sizeof(*controller), GFP_KERNEL);
+	controller = kzalloc(sizeof(*controller), GFP_KERNEL);
 	if (!controller)
 		return NULL;
 
-	memset(controller, 0, sizeof(*controller));
 	controller->segment = seg;
 	controller->node = -1;
 	return controller;