[PATCH v2 10/18] thunderbolt: Add tb_switch_get()

Mika Westerberg
2018-02-26T14:11:26Z

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>
---
drivers/thunderbolt/tb.h | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index 895c57a0a090..c7bd77e9c2c3 100644
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -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);
--
2.16.1