From c0f7cc47f29482558af6eee37c54176cff921aeb Mon Sep 17 00:00:00 2001
From: Pascal Massimino <pascal.massimino@gmail.com>
Date: Tue, 15 Dec 2015 14:05:13 +0100
Subject: [PATCH] fix for bug #280: UMR in next->bits

exit as early as possible upon error.

Change-Id: I4f7702228a146c31cab3c3d21079fa1fe6904cb2
---
 src/dec/vp8l.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/dec/vp8l.c b/src/dec/vp8l.c
index 19665a00..a76ad6a1 100644
--- a/src/dec/vp8l.c
+++ b/src/dec/vp8l.c
@@ -428,14 +428,14 @@ static int ReadHuffmanCodes(VP8LDecoder* const dec, int xsize, int ysize,
         alphabet_size += 1 << color_cache_bits;
       }
       size = ReadHuffmanCode(alphabet_size, dec, code_lengths, next);
+      if (size == 0) {
+        goto Error;
+      }
       if (is_trivial_literal && kLiteralMap[j] == 1) {
         is_trivial_literal = (next->bits == 0);
       }
       total_size += next->bits;
       next += size;
-      if (size == 0) {
-        goto Error;
-      }
       if (j <= ALPHA) {
         int local_max_bits = code_lengths[0];
         int k;