From 6d24b594428cacbfc2b12e36f664710643d05789 Mon Sep 17 00:00:00 2001
From: Grigori Goronzy <greg@blackbox>
Date: Mon, 27 Jun 2011 19:52:53 +0200
Subject: cache: safer ass_cache_stats

---
 libass/ass_cache.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

(limited to 'libass')

diff --git a/libass/ass_cache.c b/libass/ass_cache.c
index 8d42e61..6c34539 100644
--- a/libass/ass_cache.c
+++ b/libass/ass_cache.c
@@ -276,10 +276,14 @@ int ass_cache_empty(Cache *cache, size_t max_size)
 void ass_cache_stats(Cache *cache, size_t *size, unsigned *hits,
                      unsigned *misses, unsigned *count)
 {
-    *size = cache->cache_size;
-    *hits = cache->hits;
-    *misses = cache->misses;
-    *count = cache->items;
+    if (size)
+        *size = cache->cache_size;
+    if (hits)
+        *hits = cache->hits;
+    if (misses)
+        *misses = cache->misses;
+    if (count)
+        *count = cache->items;
 }
 
 void ass_cache_done(Cache *cache)
-- 
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