diff options
Diffstat (limited to 'drivers/misc/mei/client.c')
| -rw-r--r-- | drivers/misc/mei/client.c | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index 1a53d961302..2ab9d1613ff 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -702,12 +702,33 @@ err: int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb, s32 *slots, struct mei_cl_cb *cmpl_list) { - struct mei_device *dev = cl->dev; + struct mei_device *dev; + struct mei_msg_data *buf; struct mei_msg_hdr mei_hdr; - size_t len = cb->request_buffer.size - cb->buf_idx; - u32 msg_slots = mei_data2slots(len); + size_t len; + u32 msg_slots; int rets; + + if (WARN_ON(!cl || !cl->dev)) + return -ENODEV; + + dev = cl->dev; + + buf = &cb->request_buffer; + + rets = mei_cl_flow_ctrl_creds(cl); + if (rets < 0) + return rets; + + if (rets == 0) { + cl_dbg(dev, cl, "No flow control credentials: not sending.\n"); + return 0; + } + + len = buf->size - cb->buf_idx; + msg_slots = mei_data2slots(len); + mei_hdr.host_addr = cl->host_client_id; mei_hdr.me_addr = cl->me_client_id; mei_hdr.reserved = 0; @@ -730,8 +751,7 @@ int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb, cb->request_buffer.size, cb->buf_idx); *slots -= msg_slots; - rets = mei_write_message(dev, &mei_hdr, - cb->request_buffer.data + cb->buf_idx); + rets = mei_write_message(dev, &mei_hdr, buf->data + cb->buf_idx); if (rets) { cl->status = rets; list_move_tail(&cb->list, &cmpl_list->list); |