diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 9734cb76dd6c24ff499204aa7ff5c60ecae7865f..42ce41d71b7fd8d0e97dc6c96fb40040fd9eb6a8 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -478,10 +478,9 @@ dummy_alloc_request (struct usb_ep *_ep, gfp_t mem_flags)
 		return NULL;
 	ep = usb_ep_to_dummy_ep (_ep);
 
-	req = kmalloc (sizeof *req, mem_flags);
+	req = kzalloc(sizeof(*req), mem_flags);
 	if (!req)
 		return NULL;
-	memset (req, 0, sizeof *req);
 	INIT_LIST_HEAD (&req->queue);
 	return &req->req;
 }
diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c
index b0f3cd63e3b9110ed8d3e73d10a2754b1917001f..66b81bbf6bee2d695f4ffb637dc489e737be0d17 100644
--- a/drivers/usb/gadget/goku_udc.c
+++ b/drivers/usb/gadget/goku_udc.c
@@ -275,11 +275,10 @@ goku_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags)
 
 	if (!_ep)
 		return NULL;
-	req = kmalloc(sizeof *req, gfp_flags);
+	req = kzalloc(sizeof *req, gfp_flags);
 	if (!req)
 		return NULL;
 
-	memset(req, 0, sizeof *req);
 	req->req.dma = DMA_ADDR_INVALID;
 	INIT_LIST_HEAD(&req->queue);
 	return &req->req;
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index 0aab7d24c768d03c99c5a67aa154bf2df1e4e640..b44cfda76b61a572ddb2c6f7411297d4d7433dd1 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -170,10 +170,9 @@ static struct dev_data *dev_new (void)
 {
 	struct dev_data		*dev;
 
-	dev = kmalloc (sizeof *dev, GFP_KERNEL);
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (!dev)
 		return NULL;
-	memset (dev, 0, sizeof *dev);
 	dev->state = STATE_DEV_DISABLED;
 	atomic_set (&dev->count, 1);
 	spin_lock_init (&dev->lock);
@@ -1592,10 +1591,9 @@ static int activate_ep_files (struct dev_data *dev)
 	gadget_for_each_ep (ep, dev->gadget) {
 		struct ep_data	*data;
 
-		data = kmalloc (sizeof *data, GFP_KERNEL);
+		data = kzalloc(sizeof(*data), GFP_KERNEL);
 		if (!data)
 			goto enomem;
-		memset (data, 0, sizeof data);
 		data->state = STATE_EP_DISABLED;
 		init_MUTEX (&data->lock);
 		init_waitqueue_head (&data->wait);
diff --git a/drivers/usb/gadget/lh7a40x_udc.c b/drivers/usb/gadget/lh7a40x_udc.c
index 1a362c5e7f3d05c88fdfc66af743c30dfc067a91..0d3424eda0380f622d0b96053132ad873f310e7f 100644
--- a/drivers/usb/gadget/lh7a40x_udc.c
+++ b/drivers/usb/gadget/lh7a40x_udc.c
@@ -1114,11 +1114,10 @@ static struct usb_request *lh7a40x_alloc_request(struct usb_ep *ep,
 
 	DEBUG("%s, %p\n", __FUNCTION__, ep);
 
-	req = kmalloc(sizeof *req, gfp_flags);
+	req = kzalloc(sizeof(*req), gfp_flags);
 	if (!req)
 		return 0;
 
-	memset(req, 0, sizeof *req);
 	INIT_LIST_HEAD(&req->queue);
 
 	return &req->req;
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index 67b13ab2f3f5a18ef80456fc9362a701777ce797..fb73dc100535c80d2e16de0ea68f62e533e5ab84 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -386,11 +386,10 @@ net2280_alloc_request (struct usb_ep *_ep, gfp_t gfp_flags)
 		return NULL;
 	ep = container_of (_ep, struct net2280_ep, ep);
 
-	req = kmalloc (sizeof *req, gfp_flags);
+	req = kzalloc(sizeof(*req), gfp_flags);
 	if (!req)
 		return NULL;
 
-	memset (req, 0, sizeof *req);
 	req->req.dma = DMA_ADDR_INVALID;
 	INIT_LIST_HEAD (&req->queue);
 
diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c
index a8972d7c97beff2b6a5831f284daf6f68dfd3cf3..fbea514489094778c334c6876e906514b7b1cbce 100644
--- a/drivers/usb/gadget/omap_udc.c
+++ b/drivers/usb/gadget/omap_udc.c
@@ -273,9 +273,8 @@ omap_alloc_request(struct usb_ep *ep, gfp_t gfp_flags)
 {
 	struct omap_req	*req;
 
-	req = kmalloc(sizeof *req, gfp_flags);
+	req = kzalloc(sizeof(*req), gfp_flags);
 	if (req) {
-		memset (req, 0, sizeof *req);
 		req->req.dma = DMA_ADDR_INVALID;
 		INIT_LIST_HEAD (&req->queue);
 	}
@@ -2586,11 +2585,10 @@ omap_udc_setup(struct platform_device *odev, struct otg_transceiver *xceiv)
 	/* UDC_PULLUP_EN gates the chip clock */
 	// OTG_SYSCON_1_REG |= DEV_IDLE_EN;
 
-	udc = kmalloc (sizeof *udc, SLAB_KERNEL);
+	udc = kzalloc(sizeof(*udc), SLAB_KERNEL);
 	if (!udc)
 		return -ENOMEM;
 
-	memset(udc, 0, sizeof *udc);
 	spin_lock_init (&udc->lock);
 
 	udc->gadget.ops = &omap_gadget_ops;
diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c
index bb028c5b8952cbdf141006ce26079d6ab2e68275..680f7fc5b1717addba266f385e33a7b209ee1d7e 100644
--- a/drivers/usb/gadget/pxa2xx_udc.c
+++ b/drivers/usb/gadget/pxa2xx_udc.c
@@ -335,11 +335,10 @@ pxa2xx_ep_alloc_request (struct usb_ep *_ep, gfp_t gfp_flags)
 {
 	struct pxa2xx_request *req;
 
-	req = kmalloc (sizeof *req, gfp_flags);
+	req = kzalloc(sizeof(*req), gfp_flags);
 	if (!req)
 		return NULL;
 
-	memset (req, 0, sizeof *req);
 	INIT_LIST_HEAD (&req->queue);
 	return &req->req;
 }
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c
index 548feaac45533440ac2651415cb61146742432a5..b992546c394d5c1e5aac6dd823d6875d506b9846 100644
--- a/drivers/usb/gadget/serial.c
+++ b/drivers/usb/gadget/serial.c
@@ -2178,10 +2178,9 @@ static int gs_alloc_ports(struct gs_dev *dev, gfp_t kmalloc_flags)
 		return -EIO;
 
 	for (i=0; i<GS_NUM_PORTS; i++) {
-		if ((port=(struct gs_port *)kmalloc(sizeof(struct gs_port), kmalloc_flags)) == NULL)
+		if ((port=kzalloc(sizeof(struct gs_port), kmalloc_flags)) == NULL)
 			return -ENOMEM;
 
-		memset(port, 0, sizeof(struct gs_port));
 		port->port_dev = dev;
 		port->port_num = i;
 		port->port_line_coding.dwDTERate = cpu_to_le32(GS_DEFAULT_DTE_RATE);
diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c
index 44d8e5e77da74918a72bf5a5fce524ae7fb6108d..51424f66a76599a28193fe59f7950160805fc138 100644
--- a/drivers/usb/gadget/zero.c
+++ b/drivers/usb/gadget/zero.c
@@ -1188,10 +1188,9 @@ zero_bind (struct usb_gadget *gadget)
 
 
 	/* ok, we made sense of the hardware ... */
-	dev = kmalloc (sizeof *dev, SLAB_KERNEL);
+	dev = kzalloc(sizeof(*dev), SLAB_KERNEL);
 	if (!dev)
 		return -ENOMEM;
-	memset (dev, 0, sizeof *dev);
 	spin_lock_init (&dev->lock);
 	dev->gadget = gadget;
 	set_gadget_data (gadget, dev);