From 4ab366a805a7678642539465d68ef906b4599aeb Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Mon, 22 Dec 2014 22:35:37 +0000
Subject: [PATCH] some fixes, some other experiments

---
 src/dropout_layer.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/dropout_layer.c b/src/dropout_layer.c
index 8104b56..edcb426 100644
--- a/src/dropout_layer.c
+++ b/src/dropout_layer.c
@@ -80,6 +80,7 @@
 
 void backward_dropout_layer_gpu(dropout_layer layer, cl_mem delta)
 {
+    if(!delta) return;
     int size = layer.inputs*layer.batch;
 
     cl_kernel kernel = get_dropout_kernel();

--
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