From 8d01593b6580881ff554824ba598720202b0eb7b Mon Sep 17 00:00:00 2001
From: Tomas Kulhanek <tomas.kulhanek@stfc.ac.uk>
Date: Mon, 17 Dec 2018 12:59:06 +0000
Subject: UPDATE: return -1 on error

---
 Core/regularisers_GPU/dTV_FGP_GPU_core.cu | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Core/regularisers_GPU/dTV_FGP_GPU_core.cu b/Core/regularisers_GPU/dTV_FGP_GPU_core.cu
index 0bc3ff0..7503ec7 100644
--- a/Core/regularisers_GPU/dTV_FGP_GPU_core.cu
+++ b/Core/regularisers_GPU/dTV_FGP_GPU_core.cu
@@ -461,7 +461,7 @@ extern "C" int dTV_FGP_GPU_main(float *Input, float *InputRef, float *Output, fl
     cudaGetDeviceCount(&deviceCount);
     if (deviceCount == 0) {
         fprintf(stderr, "No CUDA devices found\n");
-        return;
+        return -1;
     }
     
     int count = 0, i;
-- 
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