From 0678641b7cffe63273683f589523ade98472687b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20B=C5=93sch?= <ubitux@gmail.com>
Date: Thu, 6 Dec 2012 16:14:38 +0100
Subject: [PATCH] lavfi/deshake: remove unecessary check before unref.

---
 libavfilter/vf_deshake.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/libavfilter/vf_deshake.c b/libavfilter/vf_deshake.c
index 5c562eb2b4..68d72673ae 100644
--- a/libavfilter/vf_deshake.c
+++ b/libavfilter/vf_deshake.c
@@ -530,8 +530,7 @@ static int filter_frame(AVFilterLink *link, AVFilterBufferRef *in)
 
     // Store the current frame as the reference frame for calculating the
     // motion of the next frame
-    if (deshake->ref != NULL)
-        avfilter_unref_buffer(deshake->ref);
+    avfilter_unref_buffer(deshake->ref);
 
     // Cleanup the old reference frame
     deshake->ref = in;