diff --git a/libavformat/adp.c b/libavformat/adp.c
index 8668c78fe4..b0ee09753e 100644
--- a/libavformat/adp.c
+++ b/libavformat/adp.c
@@ -75,13 +75,9 @@ static int adp_read_packet(AVFormatContext *s, AVPacket *pkt)
         return AVERROR_EOF;
 
     ret = av_get_packet(s->pb, pkt, size);
+    if (ret < 0)
+        return ret;
 
-    if (ret != size) {
-        if (ret < 0) {
-            return ret;
-        }
-        av_shrink_packet(pkt, ret);
-    }
     pkt->stream_index = 0;
 
     return ret;
diff --git a/libavformat/svs.c b/libavformat/svs.c
index d4285ed306..8be26c5bc3 100644
--- a/libavformat/svs.c
+++ b/libavformat/svs.c
@@ -79,7 +79,6 @@ static int svs_read_packet(AVFormatContext *s, AVPacket *pkt)
     if (ret != 32 * 256) {
         if (ret < 0)
             return ret;
-        av_shrink_packet(pkt, ret);
         pkt->flags &= ~AV_PKT_FLAG_CORRUPT;
     }
     pkt->stream_index = 0;