diff options
Diffstat (limited to 'drivers/gpu/drm/drm_bridge.c')
| -rw-r--r-- | drivers/gpu/drm/drm_bridge.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index b4c89ec01998..d6ce7b4c019f 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -23,6 +23,7 @@ #include <linux/debugfs.h> #include <linux/err.h> +#include <linux/export.h> #include <linux/media-bus-format.h> #include <linux/module.h> #include <linux/mutex.h> @@ -203,6 +204,8 @@ static void __drm_bridge_free(struct kref *kref) { struct drm_bridge *bridge = container_of(kref, struct drm_bridge, refcount); + if (bridge->funcs->destroy) + bridge->funcs->destroy(bridge); kfree(bridge->container); } @@ -1392,6 +1395,23 @@ struct drm_bridge *of_drm_find_bridge(struct device_node *np) EXPORT_SYMBOL(of_drm_find_bridge); #endif +/** + * devm_drm_put_bridge - Release a bridge reference obtained via devm + * @dev: device that got the bridge via devm + * @bridge: pointer to a struct drm_bridge obtained via devm + * + * Same as drm_bridge_put() for bridge pointers obtained via devm functions + * such as devm_drm_bridge_alloc(). + * + * This function is a temporary workaround and MUST NOT be used. Manual + * handling of bridge lifetime is inherently unsafe. + */ +void devm_drm_put_bridge(struct device *dev, struct drm_bridge *bridge) +{ + devm_release_action(dev, drm_bridge_put_void, bridge); +} +EXPORT_SYMBOL(devm_drm_put_bridge); + static void drm_bridge_debugfs_show_bridge(struct drm_printer *p, struct drm_bridge *bridge, unsigned int idx) |