[PATCH v2 01/16] drm/panel: get/put panel reference in drm_panel_add/remove()
From: Anusha Srivatsa <hidden>
Date: 2025-06-19 19:17:45
Also in:
dri-devel, linux-renesas-soc, linux-samsung-soc, linux-sunxi, linux-tegra, lkml
Subsystem:
drm drivers, drm drivers and misc gpu patches, drm panel drivers, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Neil Armstrong, Linus Torvalds
Take the panel reference and put it back as required. drm_panel_add() and drm_panel_remove() add a panel to the global registry and removes a panel respectively. Use get() and put() helpers to keep up with refcounting. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Anusha Srivatsa <redacted> --- drivers/gpu/drm/drm_panel.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c
index 805b4151ccefd8ec0107951162c3b71446102ffb..ced6b08923b2150ebda6e1d9001517103895def1 100644
--- a/drivers/gpu/drm/drm_panel.c
+++ b/drivers/gpu/drm/drm_panel.c@@ -80,6 +80,7 @@ EXPORT_SYMBOL(drm_panel_init); */ void drm_panel_add(struct drm_panel *panel) { + drm_panel_get(panel); mutex_lock(&panel_lock); list_add_tail(&panel->list, &panel_list); mutex_unlock(&panel_lock);
@@ -97,6 +98,7 @@ void drm_panel_remove(struct drm_panel *panel) mutex_lock(&panel_lock); list_del_init(&panel->list); mutex_unlock(&panel_lock); + drm_panel_put(panel); } EXPORT_SYMBOL(drm_panel_remove);
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2.48.1