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

[Thierry Reding]

On Mon, Oct 13, 2014 at 08:16:57PM +0100, Emil Velikov wrote:
> On 13/10/14 12:47, Thierry Reding wrote:
> > On Mon, Jul 21, 2014 at 02:02:58PM +0200, Thierry Reding wrote:
> >> From: Thierry Reding <treding at 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;
> >>  		}
> >>  	}
> >>  
> > 
> > Ping?
> > 
> > Thierry
> > 
> I have an identical patch in a local branch, but with worse commit
> message :) Fwiw the patch is
> 
> Reviewed-by: Emil Velikov <emil.l.velikov at gmail.com>

Ben, any chance you could pick this up? It should still apply as-is on
recent trees, but I can resend if you prefer.

Thierry
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