50 static void hotplug_event(u32 type, struct acpiphp_context *context);
61 	struct acpiphp_context *context;  in acpiphp_init_context()  local
63 	context = kzalloc(sizeof(*context), GFP_KERNEL);  in acpiphp_init_context()
64 	if (!context)  in acpiphp_init_context()
67 	context->refcount = 1;  in acpiphp_init_context()
68 	context->hp.notify = acpiphp_hotplug_notify;  in acpiphp_init_context()
69 	context->hp.fixup = acpiphp_post_dock_fixup;  in acpiphp_init_context()
70 	acpi_set_hp_context(adev, &context->hp);  in acpiphp_init_context()
71 	return context;  in acpiphp_init_context()
82 	struct acpiphp_context *context;  in acpiphp_get_context()  local
87 	context = to_acpiphp_context(adev->hp);  in acpiphp_get_context()
88 	context->refcount++;  in acpiphp_get_context()
89 	return context;  in acpiphp_get_context()
100 static void acpiphp_put_context(struct acpiphp_context *context)  in acpiphp_put_context()  argument
102 	if (--context->refcount)  in acpiphp_put_context()
105 	WARN_ON(context->bridge);  in acpiphp_put_context()
106 	context->hp.self->hp = NULL;  in acpiphp_put_context()
107 	kfree(context);  in acpiphp_put_context()
122 	struct acpiphp_context *context;  in acpiphp_grab_context()  local
125 	context = acpiphp_get_context(adev);  in acpiphp_grab_context()
126 	if (!context || context->func.parent->is_going_away) {  in acpiphp_grab_context()
130 	get_bridge(context->func.parent);  in acpiphp_grab_context()
131 	acpiphp_put_context(context);  in acpiphp_grab_context()
133 	return context;  in acpiphp_grab_context()
136 static void acpiphp_let_context_go(struct acpiphp_context *context)  in acpiphp_let_context_go()  argument
138 	put_bridge(context->func.parent);  in acpiphp_let_context_go()
143 	struct acpiphp_context *context;  in free_bridge()  local
159 	context = bridge->context;  in free_bridge()
161 	if (context) {  in free_bridge()
163 		put_bridge(context->func.parent);  in free_bridge()
164 		context->bridge = NULL;  in free_bridge()
165 		acpiphp_put_context(context);  in free_bridge()
183 	struct acpiphp_context *context = acpiphp_grab_context(adev);  in acpiphp_post_dock_fixup()  local
187 	if (!context)  in acpiphp_post_dock_fixup()
190 	bus = context->func.slot->bus;  in acpiphp_post_dock_fixup()
208 	acpiphp_let_context_go(context);  in acpiphp_post_dock_fixup()
222 	struct acpiphp_context *context;  in acpiphp_add_context()  local
247 	context = acpiphp_init_context(adev);  in acpiphp_add_context()
248 	if (!context) {  in acpiphp_add_context()
253 	newfunc = &context->func;  in acpiphp_add_context()
276 		acpiphp_put_context(context);  in acpiphp_add_context()
766 static void hotplug_event(u32 type, struct acpiphp_context *context)  in hotplug_event()  argument
768 	acpi_handle handle = context->hp.self->handle;  in hotplug_event()
769 	struct acpiphp_func *func = &context->func;  in hotplug_event()
774 	bridge = context->bridge;  in hotplug_event()
822 	struct acpiphp_context *context;  in acpiphp_hotplug_notify()  local
824 	context = acpiphp_grab_context(adev);  in acpiphp_hotplug_notify()
825 	if (!context)  in acpiphp_hotplug_notify()
828 	hotplug_event(type, context);  in acpiphp_hotplug_notify()
829 	acpiphp_let_context_go(context);  in acpiphp_hotplug_notify()
882 		struct acpiphp_context *context;  in acpiphp_enumerate_slots()  local
890 		context = acpiphp_get_context(adev);  in acpiphp_enumerate_slots()
891 		if (!context)  in acpiphp_enumerate_slots()
894 		bridge->context = context;  in acpiphp_enumerate_slots()
895 		context->bridge = bridge;  in acpiphp_enumerate_slots()
897 		get_bridge(context->func.parent);  in acpiphp_enumerate_slots()