[PATCH 4.14 54/59] mei: release me_cl object reference

[Greg Kroah-Hartman]

From: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>

commit fc9c03ce30f79b71807961bfcb42be191af79873 upstream.

Allow me_cl object to be freed by releasing the reference
that was acquired  by one of the search functions:
__mei_me_cl_by_uuid_id() or __mei_me_cl_by_uuid()

Cc: <stable@xxxxxxxxxxxxxxx>
Reported-by: ää <teroincn@xxxxxxxxx>
Signed-off-by: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
Link: https://lore.kernel.org/r/20200512223140.32186-1-tomas.winkler@xxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/misc/mei/client.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -276,6 +276,7 @@ void mei_me_cl_rm_by_uuid(struct mei_dev
 	down_write(&dev->me_clients_rwsem);
 	me_cl = __mei_me_cl_by_uuid(dev, uuid);
 	__mei_me_cl_del(dev, me_cl);
+	mei_me_cl_put(me_cl);
 	up_write(&dev->me_clients_rwsem);
 }
 
@@ -297,6 +298,7 @@ void mei_me_cl_rm_by_uuid_id(struct mei_
 	down_write(&dev->me_clients_rwsem);
 	me_cl = __mei_me_cl_by_uuid_id(dev, uuid, id);
 	__mei_me_cl_del(dev, me_cl);
+	mei_me_cl_put(me_cl);
 	up_write(&dev->me_clients_rwsem);
 }