staging: unisys: kmalloc/memset to kzalloc conversation

---
 drivers/staging/unisys/include/uisutils.h           | 7 -------
 drivers/staging/unisys/virthba/virthba.c            | 9 ++++-----
 drivers/staging/unisys/virtpci/virtpci.c            | 3 +--
 drivers/staging/unisys/visorutil/memregion_direct.c | 5 ++---
 drivers/staging/unisys/visorutil/periodic_work.c    | 5 ++---
 5 files changed, 9 insertions(+), 20 deletions(-)
 
diff --git a/drivers/staging/unisys/include/uisutils.h b/drivers/staging/unisys/include/uisutils.h
index 81b5d9b..effd893 100644
--- a/drivers/staging/unisys/include/uisutils.h
+++ b/drivers/staging/unisys/include/uisutils.h
@@ -189,13 +189,6 @@ struct chaninfo {
 	schedule_timeout((x)*HZ); \
 }
 
-#define ALLOC_CMDRSP(cmdrsp) { \
-	cmdrsp = kmalloc(SIZEOF_CMDRSP, GFP_ATOMIC); \
-	if (cmdrsp != NULL) { \
-		memset(cmdrsp, 0, SIZEOF_CMDRSP); \
-	} \
-}
-
 /* This is a hack until we fix IOVM to initialize the channel header
  * correctly at DEVICE_CREATE time, INSTEAD OF waiting until
  * DEVICE_CONFIGURE time.
diff --git a/drivers/staging/unisys/virthba/virthba.c b/drivers/staging/unisys/virthba/virthba.c
index 8aefaa8..817b11d 100644
--- a/drivers/staging/unisys/virthba/virthba.c
+++ b/drivers/staging/unisys/virthba/virthba.c
@@ -402,9 +402,8 @@ process_disk_notify(struct Scsi_Host *shost, struct uiscmdrsp *cmdrsp)
 	struct diskaddremove *dar;
 	unsigned long flags;
 
-	dar = kmalloc(sizeof(struct diskaddremove), GFP_ATOMIC);
+	dar = kzalloc(sizeof(struct diskaddremove), GFP_ATOMIC);
 	if (dar) {
-		memset(dar, 0, sizeof(struct diskaddremove));
 		dar->add = cmdrsp->disknotify.add;
 		dar->shost = shost;
 		dar->channel = cmdrsp->disknotify.channel;
@@ -697,7 +696,7 @@ forward_vdiskmgmt_command(VDISK_MGMT_TYPES vdiskcmdtype,
 		return FAILED;
 	}
 
-	ALLOC_CMDRSP(cmdrsp);
+	cmdrsp = kzalloc(SIZEOF_CMDRSP, GFP_ATOMIC);
 	if (cmdrsp == NULL) {
 		LOGERR("kmalloc of cmdrsp failed.\n");
 		return FAILED;	/* reject */
@@ -759,7 +758,7 @@ forward_taskmgmt_command(TASK_MGMT_TYPES tasktype, struct scsi_device *scsidev)
 		return FAILED;
 	}
 
-	ALLOC_CMDRSP(cmdrsp);
+	cmdrsp = kzalloc(SIZEOF_CMDRSP, GFP_ATOMIC);
 	if (cmdrsp == NULL) {
 		LOGERR("kmalloc of cmdrsp failed.\n");
 		return FAILED;	/* reject */
@@ -930,7 +929,7 @@ virthba_queue_command_lck(struct scsi_cmnd *scsicmd,
 		return SCSI_MLQUEUE_DEVICE_BUSY;
 	}
 
-	ALLOC_CMDRSP(cmdrsp);
+	cmdrsp = kzalloc(SIZEOF_CMDRSP, GFP_ATOMIC);
 	if (cmdrsp == NULL) {
 		LOGERR("kmalloc of cmdrsp failed.\n");
 		return 1;	/* reject the command */
diff --git a/drivers/staging/unisys/virtpci/virtpci.c b/drivers/staging/unisys/virtpci/virtpci.c
index 1b64632..8e34650 100644
--- a/drivers/staging/unisys/virtpci/virtpci.c
+++ b/drivers/staging/unisys/virtpci/virtpci.c
@@ -254,13 +254,12 @@ static int add_vbus(struct add_vbus_guestpart *addparams)
 {
 	int ret;
 	struct device *vbus;
-	vbus = kmalloc(sizeof(struct device), GFP_ATOMIC);
+	vbus = kzalloc(sizeof(struct device), GFP_ATOMIC);
 
 	POSTCODE_LINUX_2(VPCI_CREATE_ENTRY_PC, POSTCODE_SEVERITY_INFO);
 	if (!vbus)
 		return 0;
 
-	memset(vbus, 0, sizeof(struct device));
 	dev_set_name(vbus, "vbus%d", addparams->busNo);
 	vbus->release = virtpci_bus_release;
 	vbus->parent = &virtpci_rootbus_device;	/* root bus is parent */
diff --git a/drivers/staging/unisys/visorutil/memregion_direct.c b/drivers/staging/unisys/visorutil/memregion_direct.c
index 82c651d..b9b61e8 100644
--- a/drivers/staging/unisys/visorutil/memregion_direct.c
+++ b/drivers/staging/unisys/visorutil/memregion_direct.c
@@ -41,13 +41,12 @@ MEMREGION *
 visor_memregion_create(HOSTADDRESS physaddr, ulong nbytes)
 {
 	MEMREGION *rc = NULL;
-	MEMREGION *memregion = kmalloc(sizeof(MEMREGION),
-				       GFP_KERNEL|__GFP_NORETRY);
+	MEMREGION *memregion = kzalloc(sizeof(MEMREGION),
+				       GFP_KERNEL | __GFP_NORETRY);
 	if (memregion == NULL) {
 		ERRDRV("visor_memregion_create allocation failed");
 		return NULL;
 	}
-	memset(memregion, 0, sizeof(MEMREGION));
 	memregion->physaddr = physaddr;
 	memregion->nbytes = nbytes;
 	memregion->overlapped = FALSE;
diff --git a/drivers/staging/unisys/visorutil/periodic_work.c b/drivers/staging/unisys/visorutil/periodic_work.c
index cc1c678..fb1e894 100644
--- a/drivers/staging/unisys/visorutil/periodic_work.c
+++ b/drivers/staging/unisys/visorutil/periodic_work.c
@@ -56,13 +56,12 @@ PERIODIC_WORK *visor_periodic_work_create(ulong jiffy_interval,
 					  void *workfuncarg,
 					  const char *devnam)
 {
-	PERIODIC_WORK *periodic_work = kmalloc(sizeof(PERIODIC_WORK),
-					       GFP_KERNEL|__GFP_NORETRY);
+	PERIODIC_WORK *periodic_work = kzalloc(sizeof(PERIODIC_WORK),
+					       GFP_KERNEL | __GFP_NORETRY);
 	if (periodic_work == NULL) {
 		ERRDRV("periodic_work allocation failed ");
 		return NULL;
 	}
-	memset(periodic_work, '\0', sizeof(PERIODIC_WORK));
 	rwlock_init(&periodic_work->lock);
 	periodic_work->jiffy_interval = jiffy_interval;
 	periodic_work->workqueue = workqueue;