gpu: nvgpu: Fix signed comparison bugs

Fix small problems related to signed versus unsigned comparisons
throughout the driver. Bump up the warning level to prevent such
problems from occuring in future.

Change-Id: I8ff5efb419f664e8a2aedadd6515ae4d18502ae0
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1252068
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/ce2_gk20a.c b/drivers/gpu/nvgpu/gk20a/ce2_gk20a.c
index bfd183fb..235bc027 100644
--- a/drivers/gpu/nvgpu/gk20a/ce2_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/ce2_gk20a.c
@@ -211,10 +211,10 @@ static void gk20a_ce_delete_gpu_context(struct gk20a_gpu_ctx *ce_ctx)
         kfree(ce_ctx);
 }
 
-static inline int gk20a_ce_get_method_size(int request_operation)
+static inline unsigned int gk20a_ce_get_method_size(int request_operation)
 {
         /* failure size */
-        int methodsize = ~0;
+        unsigned int methodsize = UINT_MAX;
 
         if (request_operation & NVGPU_CE_PHYS_MODE_TRANSFER)
                 methodsize = 10 * 2 * sizeof(u32);
@@ -518,7 +518,7 @@ u32 gk20a_ce_create_context_with_cb(struct device *dev,
         ce_ctx->gpu_ctx_state = NVGPU_CE_GPU_CTX_ALLOCATED;
 
 end:
-        if (ctx_id == ~0) {
+        if (ctx_id == (u32)~0) {
                 mutex_lock(&ce_app->app_mutex);
                 gk20a_ce_delete_gpu_context(ce_ctx);
                 mutex_unlock(&ce_app->app_mutex);