On Wed, Apr 12, 2017 at 11:33:50AM +0300, Dan Carpenter wrote:
> drm_mode_create_tile_group() uses error pointers, it doesn't return
> NULL. I re-arranged it a tiny bit to be more clear.
>
> Fixes: 40d9b043a89e ("drm/connector: store tile information from displayid (v3)")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
There's a second caller in msm, which is also broken. I feel like fixing
create_tile_group is easier (plus updating the docs).
-Daniel
>
> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> index fad3d44e4642..c6bc21673885 100644
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -4522,9 +4522,9 @@ static int drm_parse_tiled_block(struct drm_connector *connector,
> tg = drm_mode_get_tile_group(connector->dev, tile->topology_id);
> if (!tg) {
> tg = drm_mode_create_tile_group(connector->dev, tile->topology_id);
> + if (IS_ERR(tg))
> + return PTR_ERR(tg);
> }
> - if (!tg)
> - return -ENOMEM;
>
> if (connector->tile_group != tg) {
> /* if we haven't got a pointer,
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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