diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index f6b9f7e..c137c04 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -401,9 +401,8 @@
 	int ret = -ENOMEM;
 	u8 *xfer_buff;
 
-	xfer_buff = kmalloc(size, GFP_KERNEL);
+	xfer_buff = kmemdup(buff, size, GFP_KERNEL);
 	if (xfer_buff) {
-		memcpy(xfer_buff, buff, size);
 		ret = usb_control_msg(usb,
 				      usb_sndctrlpipe(usb, 0),
 				      LOAD_INTERNAL,
@@ -595,14 +594,12 @@
 	u8 *xfer_buff;
 	int bytes_read;
 
-	xfer_buff = kmalloc(size, GFP_KERNEL);
+	xfer_buff = kmemdup(data, size, GFP_KERNEL);
 	if (!xfer_buff) {
 		uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
 		return ret;
 	}
 
-	memcpy(xfer_buff, data, size);
-
 	ret = usb_bulk_msg(sc->usb_dev,
 			 usb_sndbulkpipe(sc->usb_dev, UEA_IDMA_PIPE),
 			 xfer_buff, size, &bytes_read, BULK_TIMEOUT);
@@ -765,12 +762,11 @@
 	u8 *xfer_buff;
 	int ret = -ENOMEM;
 
-	xfer_buff = kmalloc(size, GFP_KERNEL);
+	xfer_buff = kmemdup(data, size, GFP_KERNEL);
 	if (!xfer_buff) {
 		uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
 		return ret;
 	}
-	memcpy(xfer_buff, data, size);
 
 	ret = usb_control_msg(sc->usb_dev, usb_sndctrlpipe(sc->usb_dev, 0),
 			      UCDC_SEND_ENCAPSULATED_COMMAND,
diff --git a/drivers/usb/misc/emi26.c b/drivers/usb/misc/emi26.c
index 1fd9cb8..5c0a26c 100644
--- a/drivers/usb/misc/emi26.c
+++ b/drivers/usb/misc/emi26.c
@@ -53,13 +53,12 @@
 static int emi26_writememory (struct usb_device *dev, int address, unsigned char *data, int length, __u8 request)
 {
 	int result;
-	unsigned char *buffer =  kmalloc (length, GFP_KERNEL);
+	unsigned char *buffer =  kmemdup(data, length, GFP_KERNEL);
 
 	if (!buffer) {
 		err("emi26: kmalloc(%d) failed.", length);
 		return -ENOMEM;
 	}
-	memcpy (buffer, data, length);
 	/* Note: usb_control_msg returns negative value on error or length of the
 	 * 		 data that was written! */
 	result = usb_control_msg (dev, usb_sndctrlpipe(dev, 0), request, 0x40, address, 0, buffer, length, 300);
diff --git a/drivers/usb/misc/emi62.c b/drivers/usb/misc/emi62.c
index fe35137..23153ea 100644
--- a/drivers/usb/misc/emi62.c
+++ b/drivers/usb/misc/emi62.c
@@ -61,13 +61,12 @@
 static int emi62_writememory (struct usb_device *dev, int address, unsigned char *data, int length, __u8 request)
 {
 	int result;
-	unsigned char *buffer =  kmalloc (length, GFP_KERNEL);
+	unsigned char *buffer =  kmemdup(data, length, GFP_KERNEL);
 
 	if (!buffer) {
 		err("emi62: kmalloc(%d) failed.", length);
 		return -ENOMEM;
 	}
-	memcpy (buffer, data, length);
 	/* Note: usb_control_msg returns negative value on error or length of the
 	 * 		 data that was written! */
 	result = usb_control_msg (dev, usb_sndctrlpipe(dev, 0), request, 0x40, address, 0, buffer, length, 300);
diff --git a/drivers/usb/serial/ezusb.c b/drivers/usb/serial/ezusb.c
index 5169c2d..97ee718 100644
--- a/drivers/usb/serial/ezusb.c
+++ b/drivers/usb/serial/ezusb.c
@@ -31,12 +31,11 @@
 		return -ENODEV;
 	}
 
-	transfer_buffer =  kmalloc (length, GFP_KERNEL);
+	transfer_buffer = kmemdup(data, length, GFP_KERNEL);
 	if (!transfer_buffer) {
 		dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n", __FUNCTION__, length);
 		return -ENOMEM;
 	}
-	memcpy (transfer_buffer, data, length);
 	result = usb_control_msg (serial->dev, usb_sndctrlpipe(serial->dev, 0), bRequest, 0x40, address, 0, transfer_buffer, length, 3000);
 	kfree (transfer_buffer);
 	return result;
diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c
index 2a4bb66..d3b9a35 100644
--- a/drivers/usb/serial/ipw.c
+++ b/drivers/usb/serial/ipw.c
@@ -206,10 +206,9 @@
 
 	dbg("%s", __FUNCTION__);
 
-	buf_flow_init = kmalloc(16, GFP_KERNEL);
+	buf_flow_init = kmemdup(buf_flow_static, 16, GFP_KERNEL);
 	if (!buf_flow_init)
 		return -ENOMEM;
-	memcpy(buf_flow_init, buf_flow_static, 16);
 
 	if (port->tty)
 		port->tty->low_latency = 1;