[PATCH] drm/vmwgfx: Handle possible ENOMEM in vmw_stdu_connector_atomic_check

[Zack Rusin]

On Fri, Aug 9, 2024 at 2:38 PM Ian Forbes <ian.forbes at broadcom.com> wrote:
>
> Handle unlikely ENOMEN condition and other errors in
> vmw_stdu_connector_atomic_check.
>
> Signed-off-by: Ian Forbes <ian.forbes at broadcom.com>
> Reported-by: Dan Carpenter <dan.carpenter at linaro.org>
> Fixes: 75c3e8a26a35 ("drm/vmwgfx: Trigger a modeset when the screen moves")
> ---
>  drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
> index 571e157fe22e9..3223fd278a598 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
> @@ -886,6 +886,10 @@ static int vmw_stdu_connector_atomic_check(struct drm_connector *conn,
>         struct drm_crtc_state *new_crtc_state;
>
>         conn_state = drm_atomic_get_connector_state(state, conn);
> +
> +       if (IS_ERR(conn_state))
> +               return PTR_ERR(conn_state);
> +
>         du = vmw_connector_to_stdu(conn);
>
>         if (!conn_state->crtc)
> --
> 2.34.1
>

Reviewed-by: Zack Rusin <zack.rusin at broadcom.com>

z