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, 3 deletions

diff --git a/drivers/gpu/nvgpu/therm/thrmpmu.c b/drivers/gpu/nvgpu/therm/thrmpmu.c
index 6a79cc3e..7814cf5e 100644
--- a/drivers/gpu/nvgpu/therm/thrmpmu.c
+++ b/drivers/gpu/nvgpu/therm/thrmpmu.c
@@ -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"),
@@ -50,9 +50,9 @@ static void therm_pmucmdhandler(struct gk20a *g, struct pmu_msg *msg,
                 phandlerparams->success = 1;
 }
 
-u32 therm_send_pmgr_tables_to_pmu(struct gk20a *g)
+int therm_send_pmgr_tables_to_pmu(struct gk20a *g)
 {
-        u32 status = 0;
+        int status = 0;
         struct boardobjgrp *pboardobjgrp = NULL;
 
         if (!BOARDOBJGRP_IS_EMPTY(&g->therm_pmu.therm_deviceobjs.super.super)) {