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, 4 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 2b8e8b0a..c98fec48 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -850,14 +850,15 @@ struct gpu_ops {
                 void (*pg_cmd_eng_buf_load_set_dma_idx)(struct pmu_pg_cmd *pg,
                                 u8 value);
                 struct {
-                        u32 (*boardobjgrp_pmucmd_construct_impl)(struct gk20a *g,
+                        int (*boardobjgrp_pmucmd_construct_impl)
+                                (struct gk20a *g,
                                 struct boardobjgrp *pboardobjgrp,
                                 struct boardobjgrp_pmu_cmd *cmd, u8 id, u8 msgid,
                                 u8 hdrsize, u8 entrysize, u16 fbsize, u32 ss_offset,
                                 u8 rpc_func_id);
-                        u32 (*boardobjgrp_pmuset_impl)(struct gk20a *g,
+                        int (*boardobjgrp_pmuset_impl)(struct gk20a *g,
                                 struct boardobjgrp *pboardobjgrp);
-                        u32 (*boardobjgrp_pmugetstatus_impl)(struct gk20a *g,
+                        int (*boardobjgrp_pmugetstatus_impl)(struct gk20a *g,
                                 struct boardobjgrp *pboardobjgrp,
                                 struct boardobjgrpmask *mask);
                         int (*is_boardobjgrp_pmucmd_id_valid)(struct gk20a *g,