gpu: nvgpu: cleanup return types for MISRA 10.3

This is a big cleanup of return types across a number of modules in the
nvgpu driver. Many functions were returning u32 but using negative
return codes. This is a MISRA 10.3 violation by assigning signed values
to a u32.

JIRA NVGPU-647

Change-Id: I59ee66706321f5b5b1a07ed8c24b81583e9ba28c
Signed-off-by: Philip Elcan <pelcan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1810743
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/boardobj/boardobjgrp_e255.h b/drivers/gpu/nvgpu/boardobj/boardobjgrp_e255.h
index 76aa902a..10cd95c6 100644
--- a/drivers/gpu/nvgpu/boardobj/boardobjgrp_e255.h
+++ b/drivers/gpu/nvgpu/boardobj/boardobjgrp_e255.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2017, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2016-2018, NVIDIA CORPORATION.  All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -43,7 +43,8 @@ struct boardobjgrp_e255 {
                 boardobjgrp_pmudatainit_super(g, pboardpbjgrp, pboardobjgrppmu)
 
 /* Constructor and destructor */
-u32 boardobjgrpconstruct_e255(struct gk20a *g, struct boardobjgrp_e255 *pboardobjgrp);
+int boardobjgrpconstruct_e255(struct gk20a *g,
+        struct boardobjgrp_e255 *pboardobjgrp);
 boardobjgrp_destruct boardobjgrpdestruct_e255;
 boardobjgrp_pmuhdrdatainit  boardobjgrp_pmuhdrdatainit_e255;