wavpack: Fix possible underflow of unsigned integer variable

2012-03-06 14:25:27 +01:00 · 2012-03-06 14:25:27 +01:00 · 4101f87d17
commit 4101f87d17
parent 9d5e5ea553
1 changed files with 3 additions and 2 deletions
--- a/ext/wavpack/gstwavpackstreamreader.c
+++ b/ext/wavpack/gstwavpackstreamreader.c
@ -78,9 +78,10 @@ gst_wavpack_stream_reader_push_back_byte (void *id, int c)

  GST_DEBUG ("Pushing back one byte: 0x%x", c);

+  if (rid->position == 0)
+    return rid->position;
+
  rid->position -= 1;
-  if (rid->position < 0)
-    rid->position = 0;
  return rid->position;
 }