--- zzzz-none-000/linux-3.10.107/arch/unicore32/mm/ioremap.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/unicore32/mm/ioremap.c	2021-02-04 17:41:59.000000000 +0000
@@ -144,11 +144,11 @@
 	 * Don't allow RAM to be mapped
 	 */
 	if (pfn_valid(pfn)) {
-		printk(KERN_WARNING "BUG: Your driver calls ioremap() on\n"
+		WARN(1, "BUG: Your driver calls ioremap() on\n"
 			"system memory.  This leads to architecturally\n"
 			"unpredictable behaviour, and ioremap() will fail in\n"
 			"the next kernel release. Please fix your driver.\n");
-		WARN_ON(1);
+		return NULL;
 	}
 
 	type = get_mem_type(mtype);