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/semaphore_gk20a.h b/drivers/gpu/nvgpu/gk20a/semaphore_gk20a.h
index d96037ce..c73d3c05 100644
--- a/drivers/gpu/nvgpu/gk20a/semaphore_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/semaphore_gk20a.h
@@ -222,7 +222,7 @@ static inline bool gk20a_semaphore_is_released(struct gk20a_semaphore *s)
          * the value of the semaphore then the semaphore has been signaled
          * (a.k.a. released).
          */
-        return sema_val >= atomic_read(&s->value);
+        return (int)sema_val >= atomic_read(&s->value);
 }
 
 static inline bool gk20a_semaphore_is_acquired(struct gk20a_semaphore *s)
@@ -240,12 +240,12 @@ static inline u32 gk20a_semaphore_read(struct gk20a_semaphore *s)
 
 static inline u32 gk20a_semaphore_get_value(struct gk20a_semaphore *s)
 {
-        return atomic_read(&s->value);
+        return (u32)atomic_read(&s->value);
 }
 
 static inline u32 gk20a_semaphore_next_value(struct gk20a_semaphore *s)
 {
-        return atomic_read(&s->hw_sema->next_value);
+        return (u32)atomic_read(&s->hw_sema->next_value);
 }
 
 /*