Am 02.05.19 um 15:03 schrieb Nicholas Kazlauskas:
[Why]
The type of 'r' is uint32_t and the return codes for both:
- reservation_object_wait_timeout_rcu
- amdgpu_bo_reserve
...are signed. While it works for the latter since the check is
done on != 0 it doesn't work for the former since we check <= 0.
[How]
Make 'r' an int in commit planes so we're not doing any unsigned/signed
conversion here in the first place.
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index becd8cb3aab6..722f863ce4a4 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5332,7 +5332,7 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
struct drm_crtc *pcrtc,
bool wait_for_vblank)
{
- uint32_t i, r;
+ uint32_t i;
uint64_t timestamp_ns;
struct drm_plane *plane;
struct drm_plane_state *old_plane_state, *new_plane_state;
@@ -5342,7 +5342,7 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
struct dm_crtc_state *acrtc_state = to_dm_crtc_state(new_pcrtc_state);
struct dm_crtc_state *dm_old_crtc_state =
to_dm_crtc_state(drm_atomic_get_old_crtc_state(state, pcrtc));
- int planes_count = 0, vpos, hpos;
+ int r, planes_count = 0, vpos, hpos;
unsigned long flags;
struct amdgpu_bo *abo;
uint64_t tiling_flags;
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