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, 9 insertions, 9 deletions

diff --git a/drivers/gpu/nvgpu/pmgr/pwrpolicy.c b/drivers/gpu/nvgpu/pmgr/pwrpolicy.c
index 38575f74..13a94e4f 100644
--- a/drivers/gpu/nvgpu/pmgr/pwrpolicy.c
+++ b/drivers/gpu/nvgpu/pmgr/pwrpolicy.c
@@ -182,7 +182,7 @@ static u32 _pwr_policy_limitarboutputget(struct gk20a *g,
         return _pwr_policy_limitarboutputget_helper(p_limit_arb);
 }
 
-static u32 _pwr_domains_pmudatainit_hw_threshold(struct gk20a *g,
+static int _pwr_domains_pmudatainit_hw_threshold(struct gk20a *g,
                                 struct boardobj *board_obj_ptr,
                                 struct nv_pmu_boardobj *ppmudata)
 {
@@ -190,7 +190,7 @@ static u32 _pwr_domains_pmudatainit_hw_threshold(struct gk20a *g,
         struct pwr_policy_hw_threshold *p_hw_threshold;
         struct pwr_policy *p_pwr_policy;
         struct nv_pmu_pmgr_pwr_policy *pmu_pwr_policy;
-        u32 status = 0;
+        int status = 0;
 
         status = boardobj_pmudatainit_super(g, board_obj_ptr, ppmudata);
         if (status) {
@@ -256,7 +256,7 @@ static struct boardobj *construct_pwr_policy(struct gk20a *g,
                         void *pargs, u16 pargs_size, u8 type)
 {
         struct boardobj *board_obj_ptr = NULL;
-        u32 status;
+        int status;
         struct pwr_policy_hw_threshold *pwrpolicyhwthreshold;
         struct pwr_policy *pwrpolicy;
         struct pwr_policy *pwrpolicyparams = (struct pwr_policy*)pargs;
@@ -363,13 +363,13 @@ static struct boardobj *construct_pwr_policy(struct gk20a *g,
         return board_obj_ptr;
 }
 
-static u32 _pwr_policy_construct_WAR_SW_Threshold_policy(struct gk20a *g,
+static int _pwr_policy_construct_WAR_SW_Threshold_policy(struct gk20a *g,
                         struct pmgr_pwr_policy *ppwrpolicyobjs,
                         union pwr_policy_data_union *ppwrpolicydata,
                         u16 pwr_policy_size,
                         u32 obj_index)
 {
-        u32 status = 0;
+        int status = 0;
         struct boardobj *boardobj;
 
         /* WARN policy */
@@ -512,10 +512,10 @@ static inline void devinit_unpack_pwr_policy_entry(
         __UNPACK_FIELD(unpacked, packed, filter_param);
 }
 
-static u32 devinit_get_pwr_policy_table(struct gk20a *g,
+static int devinit_get_pwr_policy_table(struct gk20a *g,
                         struct pmgr_pwr_policy *ppwrpolicyobjs)
 {
-        u32 status = 0;
+        int status = 0;
         u8 *ptr = NULL;
         struct boardobj *boardobj;
         struct pwr_policy_3x_header_struct *packed_hdr;
@@ -707,9 +707,9 @@ done:
         return status;
 }
 
-u32 pmgr_policy_sw_setup(struct gk20a *g)
+int pmgr_policy_sw_setup(struct gk20a *g)
 {
-        u32 status;
+        int status;
         struct boardobjgrp *pboardobjgrp = NULL;
         struct pwr_policy *ppolicy;
         struct pmgr_pwr_policy *ppwrpolicyobjs;