[PATCH] possible keyspan debug bug

While doing some cleanups of duplication #include entries,
I found what looks like a minor bug.

The keyspan driver does #include <linux/usb.h> twice. Not
normally a problem, because of the idempotent constructions.

But in this case the behaviour of the dbg() module depends on
the value of DEBUG. Keyspan tries to handle this, but the
first #include is before the definition, and the second one
has no effect. Patch attached.

I don't have the hardware to test, but it sure looks wrong now.

drivers/usb/serial/keyspan.c

@@ -86,7 +86,6 @@
 #include <linux/module.h>
 #include <linux/spinlock.h>
 #include <asm/uaccess.h>
-#include <linux/usb.h>
 
 #ifdef CONFIG_USB_SERIAL_DEBUG
 	static int debug = 1;