dont forget to free packet, fix memleak

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@13222 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

ffserver.c

@@ -2192,9 +2192,11 @@ static int http_prepare_data(HTTPContext *c)
                         c->buffer_end = c->pb_buffer + len;
 
                         codec->frame_number++;
-                        if (len == 0)
+                        if (len == 0) {
+                            av_free_packet(&pkt);
                             goto redo;
                         }
+                    }
                     av_free_packet(&pkt);
                 }
             }