diff --git a/init/main.c b/init/main.c
index fa9b2bdde18372257d98ec6e724e86527927403a..bc0f9e0bcf22460d787142db5b6dd1c4b61e5d88 100644
--- a/init/main.c
+++ b/init/main.c
@@ -706,21 +706,20 @@ static int __init initcall_blacklist(char *str)
 static bool __init_or_module initcall_blacklisted(initcall_t fn)
 {
 	struct blacklist_entry *entry;
-	char *fn_name;
+	char fn_name[KSYM_SYMBOL_LEN];
 
-	fn_name = kasprintf(GFP_KERNEL, "%pf", fn);
-	if (!fn_name)
+	if (list_empty(&blacklisted_initcalls))
 		return false;
 
+	sprint_symbol_no_offset(fn_name, (unsigned long)fn);
+
 	list_for_each_entry(entry, &blacklisted_initcalls, next) {
 		if (!strcmp(fn_name, entry->buf)) {
 			pr_debug("initcall %s blacklisted\n", fn_name);
-			kfree(fn_name);
 			return true;
 		}
 	}
 
-	kfree(fn_name);
 	return false;
 }
 #else