From 1dc42050185d63c1de5d16146fbaee92640af187 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Sun, 15 Jul 2012 11:16:53 +0200
Subject: lavfi: check all avfilter_ref_buffer() calls for errors.

---
 libavfilter/vf_frei0r.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'libavfilter/vf_frei0r.c')

diff --git a/libavfilter/vf_frei0r.c b/libavfilter/vf_frei0r.c
index f5e9128d31..152795f5b6 100644
--- a/libavfilter/vf_frei0r.c
+++ b/libavfilter/vf_frei0r.c
@@ -438,13 +438,20 @@ static int source_request_frame(AVFilterLink *outlink)
 {
     Frei0rContext *frei0r = outlink->src->priv;
     AVFilterBufferRef *picref = ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
+    AVFilterBufferRef *buf_out;
     int ret;
 
     picref->video->pixel_aspect = (AVRational) {1, 1};
     picref->pts = frei0r->pts++;
     picref->pos = -1;
 
-    ret = ff_start_frame(outlink, avfilter_ref_buffer(picref, ~0));
+    buf_out = avfilter_ref_buffer(picref, ~0);
+    if (!buf_out) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    ret = ff_start_frame(outlink, buf_out);
     if (ret < 0)
         goto fail;
 
-- 
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