diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c
index d87dd6d042d64309fedac698dd1a5b28a8448594..dd89a13f1051adcb18d3565a495a7d34b63b4f5a 100644
--- a/arch/x86/mm/kmemcheck/kmemcheck.c
+++ b/arch/x86/mm/kmemcheck/kmemcheck.c
@@ -78,10 +78,16 @@ early_initcall(kmemcheck_init);
  */
 static int __init param_kmemcheck(char *str)
 {
+	int val;
+	int ret;
+
 	if (!str)
 		return -EINVAL;
 
-	sscanf(str, "%d", &kmemcheck_enabled);
+	ret = kstrtoint(str, 0, &val);
+	if (ret)
+		return ret;
+	kmemcheck_enabled = val;
 	return 0;
 }