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drm/panel: drop return code from drm_panel_detach()

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There are no errors that can be reported by this function,
so drop the return code.
Fix the only bridge driver that checked the return result.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Sean Paul <sean@poorly.run>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190804201637.1240-14-sam@ravnborg.org
This commit is contained in:
Sam Ravnborg 2019-08-04 22:16:34 +02:00
parent 8b0c6e2faa
commit e0d409ff16
3 changed files with 3 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
View File

@ -1780,8 +1780,7 @@ void analogix_dp_unbind(struct analogix_dp_device *dp)
if (dp->plat_data->panel) { if (dp->plat_data->panel) {
if (drm_panel_unprepare(dp->plat_data->panel)) if (drm_panel_unprepare(dp->plat_data->panel))
DRM_ERROR("failed to turnoff the panel\n"); DRM_ERROR("failed to turnoff the panel\n");
if (drm_panel_detach(dp->plat_data->panel)) drm_panel_detach(dp->plat_data->panel);
DRM_ERROR("failed to detach the panel\n");
} }
drm_dp_aux_unregister(&dp->aux); drm_dp_aux_unregister(&dp->aux);

6
drivers/gpu/drm/drm_panel.c
View File

@ -123,15 +123,11 @@ EXPORT_SYMBOL(drm_panel_attach);
* *
* This function should not be called by the panel device itself. It * This function should not be called by the panel device itself. It
* is only for the drm device that called drm_panel_attach(). * is only for the drm device that called drm_panel_attach().
*
* Return: 0 on success or a negative error code on failure.
*/ */
int drm_panel_detach(struct drm_panel *panel) void drm_panel_detach(struct drm_panel *panel)
{ {
panel->connector = NULL; panel->connector = NULL;
panel->drm = NULL; panel->drm = NULL;
return 0;
} }
EXPORT_SYMBOL(drm_panel_detach); EXPORT_SYMBOL(drm_panel_detach);

2
include/drm/drm_panel.h
View File

@ -153,7 +153,7 @@ int drm_panel_add(struct drm_panel *panel);
void drm_panel_remove(struct drm_panel *panel); void drm_panel_remove(struct drm_panel *panel);
int drm_panel_attach(struct drm_panel *panel, struct drm_connector *connector); int drm_panel_attach(struct drm_panel *panel, struct drm_connector *connector);
int drm_panel_detach(struct drm_panel *panel); void drm_panel_detach(struct drm_panel *panel);
int drm_panel_prepare(struct drm_panel *panel); int drm_panel_prepare(struct drm_panel *panel);
int drm_panel_unprepare(struct drm_panel *panel); int drm_panel_unprepare(struct drm_panel *panel);