X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavdevice%2Flavfi.c;h=c949ff7e12472f046fb7c39e7cdcb5a2d5fc4e5a;hb=12bbfc4ccaa150e06895691049fa2ea33385d210;hp=ca8f05f3f72368ee76b8e0333d3567dc13bb27cd;hpb=2d62e06ff6a9f3dbd78136c1dc4a315a727c6f00;p=ffmpeg

diff --git a/libavdevice/lavfi.c b/libavdevice/lavfi.c
index ca8f05f3f72..c949ff7e124 100644
--- a/libavdevice/lavfi.c
+++ b/libavdevice/lavfi.c
@@ -302,9 +302,13 @@ av_cold static int lavfi_read_header(AVFormatContext *avctx)
 
     if (lavfi->dump_graph) {
         char *dump = avfilter_graph_dump(lavfi->graph, lavfi->dump_graph);
-        fputs(dump, stderr);
-        fflush(stderr);
-        av_free(dump);
+        if (dump != NULL) {
+            fputs(dump, stderr);
+            fflush(stderr);
+            av_free(dump);
+        } else {
+            FAIL(AVERROR(ENOMEM));
+        }
     }
 
     /* fill each stream with the information in the corresponding sink */