Re: [PATCH] drm/radeon: don't do mst probing is MST isn't enabled.

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2015-05-12 19:51 GMT-04:00 Dave Airlie <airlied@xxxxxxxxx>:
> From: Dave Airlie <airlied@xxxxxxxxxx>
>
> This causes an oops as we haven't initialised the mst
> layer.
>
> Reported-by: Dave Jones <<davej@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>

Applied to my fixes branch.  Thanks!

Alex

> ---
>  drivers/gpu/drm/radeon/radeon_dp_mst.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c b/drivers/gpu/drm/radeon/radeon_dp_mst.c
> index 1017338..2b98ed3 100644
> --- a/drivers/gpu/drm/radeon/radeon_dp_mst.c
> +++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c
> @@ -666,6 +666,9 @@ radeon_dp_mst_probe(struct radeon_connector *radeon_connector)
>         int ret;
>         u8 msg[1];
>
> +       if (!radeon_mst)
> +               return 0;
> +
>         if (dig_connector->dpcd[DP_DPCD_REV] < 0x12)
>                 return 0;
>
> --
> 2.1.0
>
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