mei: make return values consistent across the driver

Follow-up for bits missed in
commit 7ca96aa278
mei: make return values consistent across the driver

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

drivers/misc/mei/bus.c

@@ -247,7 +247,7 @@ static int ___mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
 		return id;
 
 	if (length > dev->me_clients[id].props.max_msg_length)
-		return -EINVAL;
+		return -EFBIG;
 
 	cb = mei_io_cb_init(cl, NULL);
 	if (!cb)

drivers/misc/mei/client.c

@@ -768,10 +768,9 @@ int mei_cl_read_start(struct mei_cl *cl, size_t length)
 
 	cb->fop_type = MEI_FOP_READ;
 	if (mei_hbuf_acquire(dev)) {
-		if (mei_hbm_cl_flow_control_req(dev, cl)) {
-			rets = -ENODEV;
+		rets = mei_hbm_cl_flow_control_req(dev, cl);
+		if (rets < 0)
 			goto out;
-		}
 
 		list_add_tail(&cb->list, &dev->read_list.list);
 	} else {