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, 4 deletions

diff --git a/drivers/gpu/nvgpu/clk/clk_domain.h b/drivers/gpu/nvgpu/clk/clk_domain.h
index 4441e7a1..d0170339 100644
--- a/drivers/gpu/nvgpu/clk/clk_domain.h
+++ b/drivers/gpu/nvgpu/clk/clk_domain.h
@@ -38,10 +38,10 @@ struct clk_domain;
 enum nv_pmu_clk_clkwhich;
 
 /*data and function definition to talk to driver*/
-u32 clk_domain_sw_setup(struct gk20a *g);
-u32 clk_domain_pmu_setup(struct gk20a *g);
+int clk_domain_sw_setup(struct gk20a *g);
+int clk_domain_pmu_setup(struct gk20a *g);
 
-typedef u32 clkproglink(struct gk20a *g, struct clk_pmupstate *pclk,
+typedef int clkproglink(struct gk20a *g, struct clk_pmupstate *pclk,
                         struct clk_domain *pdomain);
 
 typedef int clkvfsearch(struct gk20a *g, struct clk_pmupstate *pclk,
@@ -123,7 +123,7 @@ struct clk_domain_3x_slave {
         clkgetslaveclk *clkdomainclkgetslaveclk;
 };
 
-u32 clk_domain_clk_prog_link(struct gk20a *g, struct clk_pmupstate *pclk);
+int clk_domain_clk_prog_link(struct gk20a *g, struct clk_pmupstate *pclk);
 
 #define CLK_CLK_DOMAIN_GET(pclk, idx)                                   \
         ((struct clk_domain *)BOARDOBJGRP_OBJ_GET_BY_IDX(               \