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, 2 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/perf/vfe_var.h b/drivers/gpu/nvgpu/perf/vfe_var.h
index 3364f994..535600a7 100644
--- a/drivers/gpu/nvgpu/perf/vfe_var.h
+++ b/drivers/gpu/nvgpu/perf/vfe_var.h
@@ -26,8 +26,8 @@
 #include "boardobj/boardobjgrp.h"
 #include <nvgpu/pmuif/nvgpu_gpmu_cmdif.h>
 
-u32 vfe_var_sw_setup(struct gk20a *g);
-u32 vfe_var_pmu_setup(struct gk20a *g);
+int vfe_var_sw_setup(struct gk20a *g);
+int vfe_var_pmu_setup(struct gk20a *g);
 
 #define VFE_VAR_GET(_pperf, _idx)                                              \
         ((struct vfe_var)BOARDOBJGRP_OBJ_GET_BY_IDX(                           \