diff --git a/libavcodec/smacker.c b/libavcodec/smacker.c
index 6709f97b4a..b2fc29b138 100644
--- a/libavcodec/smacker.c
+++ b/libavcodec/smacker.c
@@ -316,7 +316,9 @@ static int decode_header_trees(SmackVContext *smk) {
     full_size = AV_RL32(smk->avctx->extradata + 8);
     type_size = AV_RL32(smk->avctx->extradata + 12);
 
-    init_get_bits8(&gb, smk->avctx->extradata + 16, smk->avctx->extradata_size - 16);
+    ret = init_get_bits8(&gb, smk->avctx->extradata + 16, smk->avctx->extradata_size - 16);
+    if (ret < 0)
+        return ret;
 
     if(!get_bits1(&gb)) {
         av_log(smk->avctx, AV_LOG_INFO, "Skipping MMAP tree\n");