[PATCH] USB: kfree cleanup for drivers/usb/* - no need to check for NULL

Get rid of a bunch of redundant NULL pointer checks in drivers/usb/*,
there's no need to check a pointer for NULL before calling kfree() on it.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>


Index: gregkh-2.6/drivers/usb/class/audio.c
===================================================================
diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c
index a1cba4b..b5f2c06 100644
--- a/drivers/usb/serial/omninet.c
+++ b/drivers/usb/serial/omninet.c
@@ -178,7 +178,6 @@
 {
 	struct usb_serial 	*serial = port->serial;
 	struct usb_serial_port 	*wport;
-	struct omninet_data 	*od;
 
 	dbg("%s - port %d", __FUNCTION__, port->number);
 
@@ -186,9 +185,7 @@
 	usb_kill_urb(wport->write_urb);
 	usb_kill_urb(port->read_urb);
 
-	od = usb_get_serial_port_data(port);
-	if (od)
-		kfree(od);
+	kfree(usb_get_serial_port_data(port));
 }