mei: release me_cl object reference

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@vger.kernel.org>
Reported-by: 亿一 <teroincn@gmail.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20200512223140.32186-1-tomas.winkler@intel.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/mei/client.c

@@ -266,6 +266,7 @@ void mei_me_cl_rm_by_uuid(struct mei_device *dev, const uuid_le *uuid)
 	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);
 }
 
@@ -287,6 +288,7 @@ void mei_me_cl_rm_by_uuid_id(struct mei_device *dev, const uuid_le *uuid, u8 id)
 	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);
 }