[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>
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 14691cd..ce49fe3 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -1672,15 +1672,13 @@
 	 * SAC (single address cycle) addressable, so allocate a
 	 * pseudo-device to enforce that.
 	 */
-	sac = kmalloc(sizeof(*sac), GFP_KERNEL);
+	sac = kzalloc(sizeof(*sac), GFP_KERNEL);
 	if (!sac)
 		panic(PFX "Couldn't allocate struct pci_dev");
-	memset(sac, 0, sizeof(*sac));
 
-	controller = kmalloc(sizeof(*controller), GFP_KERNEL);
+	controller = kzalloc(sizeof(*controller), GFP_KERNEL);
 	if (!controller)
 		panic(PFX "Couldn't allocate struct pci_controller");
-	memset(controller, 0, sizeof(*controller));
 
 	controller->iommu = ioc;
 	sac->sysdata = controller;
@@ -1737,12 +1735,10 @@
 	struct ioc *ioc;
 	struct ioc_iommu *info;
 
-	ioc = kmalloc(sizeof(*ioc), GFP_KERNEL);
+	ioc = kzalloc(sizeof(*ioc), GFP_KERNEL);
 	if (!ioc)
 		return NULL;
 
-	memset(ioc, 0, sizeof(*ioc));
-
 	ioc->next = ioc_list;
 	ioc_list = ioc;