diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 7d02a6eadfb7..fada89337e4c 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -4317,6 +4317,11 @@ register_ftrace_function_probe(char *glob, struct trace_array *tr,
 	old_hash = *orig_hash;
 	hash = alloc_and_copy_ftrace_hash(FTRACE_HASH_DEFAULT_BITS, old_hash);
 
+	if (!hash) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
 	ret = ftrace_match_records(hash, glob, strlen(glob));
 
 	/* Nothing found? */