On Wed, Jun 19, 2019 at 02:19:47PM -0400, Sean Paul wrote:
> From: Sean Paul <[email protected]>
> 
> If state allocation fails, we still try to give back the reference on
> it. Also initialize ret in case the crtc is not enabled and we hit the
> eject button.
> 
> Fixes: 1452c25b0e60 ("drm: Add helpers to kick off self refresh mode in 
> drivers")
> Cc: Daniel Vetter <[email protected]>
> Cc: Jose Souza <[email protected]>
> Cc: Zain Wang <[email protected]>
> Cc: Tomasz Figa <[email protected]>
> Cc: Ville Syrjälä <[email protected]>
> Cc: Sam Ravnborg <[email protected]>
> Cc: Sean Paul <[email protected]>
> Cc: Maarten Lankhorst <[email protected]>
> Cc: Maxime Ripard <[email protected]>
> Cc: Sean Paul <[email protected]>
> Cc: David Airlie <[email protected]>
> Cc: [email protected]
> Reported-by: Dan Carpenter <[email protected]>
> Signed-off-by: Sean Paul <[email protected]>

Reviewed-by: Daniel Vetter <[email protected]>

> ---
>  drivers/gpu/drm/drm_self_refresh_helper.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_self_refresh_helper.c 
> b/drivers/gpu/drm/drm_self_refresh_helper.c
> index e0d2ad1f070cb..4b9424a8f1f1c 100644
> --- a/drivers/gpu/drm/drm_self_refresh_helper.c
> +++ b/drivers/gpu/drm/drm_self_refresh_helper.c
> @@ -69,14 +69,14 @@ static void drm_self_refresh_helper_entry_work(struct 
> work_struct *work)
>       struct drm_connector *conn;
>       struct drm_connector_state *conn_state;
>       struct drm_crtc_state *crtc_state;
> -     int i, ret;
> +     int i, ret = 0;
>  
>       drm_modeset_acquire_init(&ctx, 0);
>  
>       state = drm_atomic_state_alloc(dev);
>       if (!state) {
>               ret = -ENOMEM;
> -             goto out;
> +             goto out_drop_locks;
>       }
>  
>  retry:
> @@ -116,6 +116,8 @@ static void drm_self_refresh_helper_entry_work(struct 
> work_struct *work)
>       }
>  
>       drm_atomic_state_put(state);
> +
> +out_drop_locks:
>       drm_modeset_drop_locks(&ctx);
>       drm_modeset_acquire_fini(&ctx);
>  }
> -- 
> Sean Paul, Software Engineer, Google / Chromium OS
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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