| Message ID | 20250314-drm-bridge-refcount-v7-3-152571f8c694@bootlin.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | drm/bridge: add devm_drm_bridge_alloc() with bridge refcount | expand |
On Fri, 14 Mar 2025 11:31:16 +0100, Luca Ceresoli wrote: > 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@bootlin.com> > > > [ ... ] Reviewed-by: Maxime Ripard <mripard@kernel.org> Thanks! Maxime
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);
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@bootlin.com> --- 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(+)