USB: unnecessary GFP_ATOMIC in mos7720 driver

GFP_KERNEL will do.
Signed-off-by: NOliver Neukum <oneukum@suse.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/serial/mos7720.c

@@ -353,7 +353,7 @@ static int mos7720_open(struct usb_serial_port *port, struct file * filp)
 
 	/* Initialising the write urb pool */
 	for (j = 0; j < NUM_URBS; ++j) {
-		urb = usb_alloc_urb(0,GFP_ATOMIC);
+		urb = usb_alloc_urb(0,GFP_KERNEL);
 		mos7720_port->write_urb_pool[j] = urb;
 
 		if (urb == NULL) {