[PATCH RFC v2 08/24] drm/bridge: initialize chain_node list head on allocation

Luca Ceresoli luca.ceresoli at bootlin.com
Thu Oct 1 05:42:30 PDT 2026


In preparation to add a check to detect whether a bridge is not yet
attached, ensure the chain_node list_head is always empty [as in
list_empty()] since it is allocated, until it is attached.

Signed-off-by: Luca Ceresoli <luca.ceresoli at bootlin.com>
---
 drivers/gpu/drm/drm_bridge.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c
index 1b4ee746acb9..cd0c246f7e99 100644
--- a/drivers/gpu/drm/drm_bridge.c
+++ b/drivers/gpu/drm/drm_bridge.c
@@ -418,6 +418,7 @@ void *__devm_drm_bridge_alloc(struct device *dev, size_t size, size_t offset,
 		return ERR_PTR(-ENOMEM);
 
 	bridge = container + offset;
+	INIT_LIST_HEAD(&bridge->chain_node);
 	INIT_LIST_HEAD(&bridge->list);
 	bridge->container = container;
 	bridge->funcs = funcs;

-- 
2.55.0




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