avcodec/hevcdec: Use error path if init_get_bits8() fails

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavcodec/hevcdec.c

@@ -2419,9 +2419,9 @@ static int hls_decode_entry_wpp(AVCodecContext *avctxt, void *input_ctb_row, int
 
     if(ctb_row) {
         ret = init_get_bits8(&lc->gb, s->data + s->sh.offset[ctb_row - 1], s->sh.size[ctb_row - 1]);
-
         if (ret < 0)
-            return ret;
+            goto error;
+
         ret = ff_init_cabac_decoder(&lc->cc, s->data + s->sh.offset[(ctb_row)-1], s->sh.size[ctb_row - 1]);
         if (ret < 0)
             goto error;