[PATCH] USB: kzalloc() conversion in drivers/usb/gadget

this patch converts drivers/usb to kzalloc usage.
Compile tested with allyes config.

I think there was a bug in drivers/usb/gadget/inode.c because
it used sizeof(*data) for the kmalloc() and sizeof(data) for
the memset(), since sizeof(data) just returns the size for a pointer.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index 67b13ab..fb73dc1 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -386,11 +386,10 @@
 		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);