drm_bridge_add() adds the bridge to the global bridge_list, so take a
reference for that. Vice versa in drm_bridge_remove().
Signed-off-by: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>
---
Changes in v7:
- in v6 this was part of "drm/bridge: add support for refcounted DRM
bridges", now split to a separate patch
---
drivers/gpu/drm/drm_bridge.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c
index 2ba0dac9bfc2dfd709d5e2457d69067c7324972c..72fa51d4dd2337f97c2bd65cfabf9cee05b661b4 100644
--- a/drivers/gpu/drm/drm_bridge.c
+++ b/drivers/gpu/drm/drm_bridge.c
@@ -259,6 +259,8 @@ EXPORT_SYMBOL(__devm_drm_bridge_alloc);
*/
void drm_bridge_add(struct drm_bridge *bridge)
{
+ drm_bridge_get(bridge);
+
mutex_init(&bridge->hpd_mutex);
if (bridge->ops & DRM_BRIDGE_OP_HDMI)
@@ -306,6 +308,8 @@ void drm_bridge_remove(struct drm_bridge *bridge)
mutex_unlock(&bridge_lock);
mutex_destroy(&bridge->hpd_mutex);
+
+ drm_bridge_put(bridge);
}
EXPORT_SYMBOL(drm_bridge_remove);
--
2.48.1
