diff options
| -rw-r--r-- | drivers/gpu/drm/drm_bridge.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index 034dbe7203bf..4d959a34ee46 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -1447,17 +1447,20 @@ EXPORT_SYMBOL(devm_drm_put_bridge); static void drm_bridge_debugfs_show_bridge(struct drm_printer *p, struct drm_bridge *bridge, - unsigned int idx) + unsigned int idx, + bool lingering) { drm_printf(p, "bridge[%u]: %ps\n", idx, bridge->funcs); - drm_printf(p, "\trefcount: %u\n", kref_read(&bridge->refcount)); + drm_printf(p, "\trefcount: %u%s\n", kref_read(&bridge->refcount), + lingering ? " [lingering]" : ""); drm_printf(p, "\ttype: [%d] %s\n", bridge->type, drm_get_connector_type_name(bridge->type)); - if (bridge->of_node) + /* The OF node could be freed after drm_bridge_remove() */ + if (bridge->of_node && !lingering) drm_printf(p, "\tOF: %pOFfc\n", bridge->of_node); drm_printf(p, "\tops: [0x%x]", bridge->ops); @@ -1483,7 +1486,10 @@ static int allbridges_show(struct seq_file *m, void *data) mutex_lock(&bridge_lock); list_for_each_entry(bridge, &bridge_list, list) - drm_bridge_debugfs_show_bridge(&p, bridge, idx++); + drm_bridge_debugfs_show_bridge(&p, bridge, idx++, false); + + list_for_each_entry(bridge, &bridge_lingering_list, list) + drm_bridge_debugfs_show_bridge(&p, bridge, idx++, true); mutex_unlock(&bridge_lock); @@ -1498,7 +1504,7 @@ static int encoder_bridges_show(struct seq_file *m, void *data) unsigned int idx = 0; drm_for_each_bridge_in_chain_scoped(encoder, bridge) - drm_bridge_debugfs_show_bridge(&p, bridge, idx++); + drm_bridge_debugfs_show_bridge(&p, bridge, idx++, false); return 0; } |