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, 2 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/fence_gk20a.c b/drivers/gpu/nvgpu/gk20a/fence_gk20a.c
index e046152d..323caa8f 100644
--- a/drivers/gpu/nvgpu/gk20a/fence_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/fence_gk20a.c
@@ -114,14 +114,14 @@ int gk20a_fence_install_fd(struct gk20a_fence *f)
 #endif
 }
 
-int gk20a_alloc_fence_pool(struct channel_gk20a *c, int count)
+int gk20a_alloc_fence_pool(struct channel_gk20a *c, unsigned int count)
 {
         int err;
         size_t size;
         struct gk20a_fence *fence_pool = NULL;
 
         size = sizeof(struct gk20a_fence);
-        if (count <= ULONG_MAX / size) {
+        if (count <= UINT_MAX / size) {
                 size = count * size;
                 fence_pool = vzalloc(size);
         }