From: "Ronald S. Bultje" <[email protected]>

This prevents crashers and errors further down when reading nodes in the
empty tree.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: [email protected]
---
 libavcodec/truemotion2.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libavcodec/truemotion2.c b/libavcodec/truemotion2.c
index 9e45045..7be148c 100644
--- a/libavcodec/truemotion2.c
+++ b/libavcodec/truemotion2.c
@@ -132,7 +132,7 @@ static int tm2_build_huff_table(TM2Context *ctx, TM2Codes 
*code)
                huff.val_bits, huff.max_bits);
         return -1;
     }
-    if((huff.nodes < 0) || (huff.nodes > 0x10000)) {
+    if((huff.nodes <= 0) || (huff.nodes > 0x10000)) {
         av_log(ctx->avctx, AV_LOG_ERROR, "Incorrect number of Huffman tree 
nodes: %i\n", huff.nodes);
         return -1;
     }
-- 
1.7.7.4

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