diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index d03edc2..9844e3e 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -217,3 +217,19 @@
 	if (*out == '\0')
 		strcpy(out, "N/A");
 }
+
+void perf_mem__lck_scnprintf(char *out, size_t sz __maybe_unused,
+			     struct mem_info *mem_info)
+{
+	u64 mask = PERF_MEM_LOCK_NA;
+
+	if (mem_info)
+		mask = mem_info->data_src.mem_lock;
+
+	if (mask & PERF_MEM_LOCK_NA)
+		strncat(out, "N/A", 3);
+	else if (mask & PERF_MEM_LOCK_LOCKED)
+		strncat(out, "Yes", 3);
+	else
+		strncat(out, "No", 2);
+}
diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h
index 6efdd6f..99678b5 100644
--- a/tools/perf/util/mem-events.h
+++ b/tools/perf/util/mem-events.h
@@ -28,4 +28,6 @@
 void perf_mem__tlb_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
 void perf_mem__lvl_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
 void perf_mem__snp_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
+void perf_mem__lck_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
+
 #endif /* __PERF_MEM_EVENTS_H */
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 2007c3b..4175b29 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -795,19 +795,9 @@
 static int hist_entry__locked_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width)
 {
-	const char *out;
-	u64 mask = PERF_MEM_LOCK_NA;
+	char out[10];
 
-	if (he->mem_info)
-		mask = he->mem_info->data_src.mem_lock;
-
-	if (mask & PERF_MEM_LOCK_NA)
-		out = "N/A";
-	else if (mask & PERF_MEM_LOCK_LOCKED)
-		out = "Yes";
-	else
-		out = "No";
-
+	perf_mem__lck_scnprintf(out, sizeof(out), he->mem_info);
 	return repsep_snprintf(bf, size, "%.*s", width, out);
 }