diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index 49248fa..a42acf6 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -2046,10 +2046,9 @@
 	void *buf = NULL;
 
 	if (size > 0) {
-		buf = kmalloc(size, GFP_KERNEL);
+		buf = kmemdup(data, size, GFP_KERNEL);
 		if (!buf)
 			return -ENOMEM;
-		memcpy(buf, data, size);
 	}
 	err = usb_control_msg(dev, pipe, request, requesttype,
 			      value, index, buf, size, timeout);
@@ -2846,12 +2845,11 @@
 	int stream, err;
 	int *rate_table = NULL;
 
-	fp = kmalloc(sizeof(*fp), GFP_KERNEL);
+	fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
 	if (! fp) {
-		snd_printk(KERN_ERR "cannot malloc\n");
+		snd_printk(KERN_ERR "cannot memdup\n");
 		return -ENOMEM;
 	}
-	memcpy(fp, quirk->data, sizeof(*fp));
 	if (fp->nr_rates > 0) {
 		rate_table = kmalloc(sizeof(int) * fp->nr_rates, GFP_KERNEL);
 		if (!rate_table) {
@@ -3029,10 +3027,9 @@
 	    altsd->bNumEndpoints != 1)
 		return -ENXIO;
 
-	fp = kmalloc(sizeof(*fp), GFP_KERNEL);
+	fp = kmemdup(&ua1000_format, sizeof(*fp), GFP_KERNEL);
 	if (!fp)
 		return -ENOMEM;
-	memcpy(fp, &ua1000_format, sizeof(*fp));
 
 	fp->channels = alts->extra[4];
 	fp->iface = altsd->bInterfaceNumber;
diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c
index abe29da..0dcf78a 100644
--- a/sound/usb/usbmidi.c
+++ b/sound/usb/usbmidi.c
@@ -323,10 +323,9 @@
 				 const void *data, int len)
 {
 	int err;
-	void *buf = kmalloc(len, GFP_KERNEL);
+	void *buf = kmemdup(data, len, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
-	memcpy(buf, data, len);
 	dump_urb("sending", buf, len);
 	err = usb_bulk_msg(ep->umidi->chip->dev, ep->urb->pipe, buf, len,
 			   NULL, 250);