From f4ebbda566f73952a721c367877b1527ba697e7a Mon Sep 17 00:00:00 2001
From: Timo Rothenpieler <timo@rothenpieler.org>
Date: Mon, 14 Aug 2017 14:15:25 +0200
Subject: [PATCH] avfilter/scale_npp: check for buffer allocation failure

I totally did not forget to amend this to the previous patch...
---
 libavfilter/vf_scale_npp.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/libavfilter/vf_scale_npp.c b/libavfilter/vf_scale_npp.c
index f64ab956c7..3fe5bbe500 100644
--- a/libavfilter/vf_scale_npp.c
+++ b/libavfilter/vf_scale_npp.c
@@ -319,13 +319,7 @@ static int init_processing_chain(AVFilterContext *ctx, int in_width, int in_heig
         last_stage = i;
     }
 
-    if (last_stage < 0)
-    {
-        ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(ctx->inputs[0]->hw_frames_ctx);
-        return 0;
-    }
-
-    ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(s->stages[last_stage].frames_ctx);
+    ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(s->stages[last_stage > 0 ? last_stage : 0].frames_ctx);
     if (!ctx->outputs[0]->hw_frames_ctx)
         return AVERROR(ENOMEM);