--- zzzz-none-000/linux-3.10.107/arch/powerpc/sysdev/rtc_cmos_setup.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/powerpc/sysdev/rtc_cmos_setup.c	2021-02-04 17:41:59.000000000 +0000
@@ -62,7 +62,7 @@
 	pd = platform_device_register_simple("rtc_cmos", -1,
 					     &res[0], num_res);
 
-	return PTR_RET(pd);
+	return PTR_ERR_OR_ZERO(pd);
 }
 fs_initcall(add_rtc);