ramips: disable watchdog on sysupgrade

SVN-Revision: 27380

target/linux/ramips/base-files/lib/upgrade/platform.sh

@@ -36,3 +36,13 @@ platform_do_upgrade() {
 		;;
 	esac
 }
+
+disable_watchdog() {
+	killall watchdog
+	( ps | grep -v 'grep' | grep '/dev/watchdog' ) && {
+		echo 'Could not disable watchdog'
+		return 1
+	}
+}
+
+append sysupgrade_pre_upgrade disable_watchdog