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, 1 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/pstate/pstate.c b/drivers/gpu/nvgpu/pstate/pstate.c
index 6c9d7736..9b7d9b7e 100644
--- a/drivers/gpu/nvgpu/pstate/pstate.c
+++ b/drivers/gpu/nvgpu/pstate/pstate.c
@@ -44,7 +44,7 @@ void gk20a_deinit_pstate_support(struct gk20a *g)
 /*sw setup for pstate components*/
 int gk20a_init_pstate_support(struct gk20a *g)
 {
-        u32 err;
+        int err;
 
         nvgpu_log_fn(g, " ");