mei: add mei_cl_alloc_linked function

Add convenient wrapper mei_cl_alloc_linked
to simplify error handling

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/mei/client.h

@@ -75,6 +75,8 @@ void mei_cl_init(struct mei_cl *cl, struct mei_device *dev);
 int mei_cl_link(struct mei_cl *cl, int id);
 int mei_cl_unlink(struct mei_cl *cl);
 
+struct mei_cl *mei_cl_alloc_linked(struct mei_device *dev, int id);
+
 int mei_cl_flush_queues(struct mei_cl *cl);
 struct mei_cl_cb *mei_cl_find_read_cb(struct mei_cl *cl);