indeo3: Fix null ptr dereference

[ffmpeg] / libavcodec / fraps.c

diff --git a/libavcodec/fraps.c b/libavcodec/fraps.c
index 0844fa793961595426b74fd9fc41c96d25444b83..de98da72ea740643a52bc866b9de2bcc8d68d609 100644 (file)
--- a/libavcodec/fraps.c
+++ b/libavcodec/fraps.c
@@ -112,10 +112,12 @@ static int fraps2_decode_plane(FrapsContext *s, uint8_t *dst, int stride, int w,
              */
             if(j) dst[i] += dst[i - stride];
             else if(Uoff) dst[i] += 0x80;
+            if (get_bits_left(&gb) < 0) {
+                free_vlc(&vlc);
+                return AVERROR_INVALIDDATA;
+            }
         }
         dst += stride;
-        if(get_bits_left(&gb) < 0)
-            return -1;
     }
     free_vlc(&vlc);
     return 0;