[PATCH] add missing MODULE_LICENSEs

From: Arjan van de Ven <arjanv@redhat.com>

drivers/mtd/chips/cfi_cmdset_0020.c

@@ -1460,3 +1460,5 @@ static void __exit cfi_staa_exit(void)
 
 module_init(cfi_staa_init);
 module_exit(cfi_staa_exit);
+
+MODULE_LICENSE("GPL");

drivers/mtd/maps/map_funcs.c

@@ -93,3 +93,4 @@ void simple_map_init(struct map_info *map)
 }
 
 EXPORT_SYMBOL(simple_map_init);
+MODULE_LICENSE("GPL");

drivers/usb/serial/safe_serial.c

@@ -93,6 +93,7 @@ static int padded = CONFIG_USB_SAFE_PADDED;
 
 MODULE_AUTHOR (DRIVER_AUTHOR);
 MODULE_DESCRIPTION (DRIVER_DESC);
+MODULE_LICENSE("GPL");
 
 #if defined(CONFIG_USBD_SAFE_SERIAL_VENDOR) && !defined(CONFIG_USBD_SAFE_SERIAL_PRODUCT)
 #abort "SAFE_SERIAL_VENDOR defined without SAFE_SERIAL_PRODUCT"

sound/oss/ac97_plugin_ad1980.c

@@ -123,3 +123,4 @@ static int ad1980_init(void)
 
 module_init(ad1980_init);
 module_exit(ad1980_exit);
+MODULE_LICENSE("GPL");