[PATCH] esp build fix

We forgot to add the spinlock to the device structure.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/linux/hayesesp.h

@@ -77,6 +77,7 @@ struct hayes_esp_config {
 
 struct esp_struct {
 	int			magic;
+	spinlock_t		lock;
 	int			port;
 	int			irq;
 	int			flags; 		/* defined in tty.h */