diff options
Diffstat (limited to 'drivers/misc/mei/hw-me.c')
| -rw-r--r-- | drivers/misc/mei/hw-me.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index 334ab02e1de2..a12b464bc0b4 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -540,8 +540,11 @@ static int mei_me_hbuf_write(struct mei_device *dev, empty_slots = mei_hbuf_empty_slots(dev); dev_dbg(dev->dev, "empty slots = %hu.\n", empty_slots); + if (empty_slots < 0) + return -EOVERFLOW; + dw_cnt = mei_data2slots(length); - if (empty_slots < 0 || dw_cnt > empty_slots) + if (dw_cnt > (u32)empty_slots) return -EMSGSIZE; mei_me_hcbww_write(dev, *((u32 *) header)); |