[PATCH] drm/nouveau/disp: Use NULL for pointers

[Thierry Reding]

From: Thierry Reding <tred...@nvidia.com>

The return type of exec_lookup() is struct nvkm_output *, so it should
return NULL rather than 0.

Signed-off-by: Thierry Reding <treding at nvidia.com>
---
 drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c 
b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
index fa30d8196f35..ebf64e1d0a70 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c
@@ -939,7 +939,7 @@ exec_lookup(struct nv50_disp_priv *priv, int head, int or, 
u32 ctrl,
                case 0x00000900: type = DCB_OUTPUT_DP; mask = 2; break;
                default:
                        nv_error(priv, "unknown SOR mc 0x%08x\n", ctrl);
-                       return 0x0000;
+                       return NULL;
                }
        }

-- 
2.0.1