1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/misc/mei/interface.c b/drivers/misc/mei/interface.c
index 88ada64c0b54..509c3957ff45 100644
--- a/drivers/misc/mei/interface.c
+++ b/drivers/misc/mei/interface.c
@@ -135,7 +135,7 @@ int mei_write_message(struct mei_device *dev, struct mei_msg_hdr *header,
         empty_slots = mei_hbuf_empty_slots(dev);
         dev_dbg(&dev->pdev->dev, "empty slots = %hu.\n", empty_slots);
 
-        dw_cnt = (length + sizeof(*header) + 3) / 4;
+        dw_cnt = mei_data2slots(length);
         if (empty_slots < 0 || dw_cnt > empty_slots)
                 return -EIO;