1 files changed, 8 insertions, 2 deletions

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 401e220566fd..1ee8f1e40f18 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -151,11 +151,17 @@ sort__sym_cmp(struct hist_entry *left, struct hist_entry *right)
 {
         u64 ip_l, ip_r;
 
+        if (!left->ms.sym && !right->ms.sym)
+                return right->level - left->level;
+
+        if (!left->ms.sym || !right->ms.sym)
+                return cmp_null(left->ms.sym, right->ms.sym);
+
         if (left->ms.sym == right->ms.sym)
                 return 0;
 
-        ip_l = left->ms.sym ? left->ms.sym->start : left->ip;
-        ip_r = right->ms.sym ? right->ms.sym->start : right->ip;
+        ip_l = left->ms.sym->start;
+        ip_r = right->ms.sym->start;
 
         return (int64_t)(ip_r - ip_l);
 }