thunderbolt: Add tb_switch_get()



Sometimes there is need for increasing reference count of a switch as
well. This also follows what we have for xdomains.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>

parent 432019d6

drivers/thunderbolt/tb.h

+7 −0

Original line number	Diff line number	Diff line
		@@ -387,6 +387,13 @@ struct tb_switch tb_switch_find_by_link_depth(struct tb tb, u8 link,
		u8 depth);
		struct tb_switch tb_switch_find_by_uuid(struct tb tb, const uuid_t *uuid);

		static inline struct tb_switch tb_switch_get(struct tb_switch sw)
		{
		if (sw)
		get_device(&sw->dev);
		return sw;
		}

		static inline void tb_switch_put(struct tb_switch *sw)
		{
		put_device(&sw->dev);