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thunderbolt: Add tb_switch_get()

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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>
This commit is contained in:
Mika Westerberg 2017-10-04 15:19:20 +03:00
parent 432019d644
commit b6b0ea70f4
1 changed files with 7 additions and 0 deletions
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7
drivers/thunderbolt/tb.h
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@ -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);