[PATCH] 2.5.40: warning fix for drivers/usb/core/usb.c

usb_hotplug()' prototype doesn't match when CONFIG_HOTPLUG is not defined.

drivers/usb/core/usb.c

@@ -624,7 +624,7 @@ static int usb_hotplug (struct device *dev, char **envp, int num_envp,
 #else
 
 static int usb_hotplug (struct device *dev, char **envp,
-			char *buffer, int buffer_size)
+			int num_envp, char *buffer, int buffer_size)
 {
 	return -ENODEV;
 }