--- zzzz-none-000/linux-3.10.107/arch/mips/fw/lib/cmdline.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/mips/fw/lib/cmdline.c	2021-02-04 17:41:59.000000000 +0000
@@ -35,6 +35,7 @@
 	else
 		_fw_envp = (int *)fw_arg2;
 
+	arcs_cmdline[0] = '\0';
 	for (i = 1; i < fw_argc; i++) {
 		strlcat(arcs_cmdline, fw_argv(i), COMMAND_LINE_SIZE);
 		if (i < (fw_argc - 1))
@@ -68,7 +69,7 @@
 					result = fw_envp(index + 1);
 					break;
 				} else if (fw_envp(index)[i] == '=') {
-					result = (fw_envp(index + 1) + i);
+					result = fw_envp(index) + i + 1;
 					break;
 				}
 			}
@@ -88,13 +89,13 @@
 {
 	unsigned long envl = 0UL;
 	char *str;
-	long val;
 	int tmp;
 
 	str = fw_getenv(envname);
 	if (str) {
-		tmp = kstrtol(str, 0, &val);
-		envl = (unsigned long)val;
+		tmp = kstrtoul(str, 0, &envl);
+		if (tmp)
+			envl = 0;
 	}
 
 	return envl;