35 	int ret;  in scmi_mbox_process_msg()  local
37 	ret = scmi_write_msg_to_smt(dev, &chan->smt, msg);  in scmi_mbox_process_msg()
38 	if (ret)  in scmi_mbox_process_msg()
39 		return ret;  in scmi_mbox_process_msg()
42 	ret = mbox_send(&chan->mbox, chan->smt.buf);  in scmi_mbox_process_msg()
43 	if (ret) {  in scmi_mbox_process_msg()
44 		dev_err(dev, "Message send failed: %d\n", ret);  in scmi_mbox_process_msg()
49 	ret = mbox_recv(&chan->mbox, chan->smt.buf, chan->timeout_us);  in scmi_mbox_process_msg()
50 	if (ret) {  in scmi_mbox_process_msg()
51 		dev_err(dev, "Response failed: %d, abort\n", ret);  in scmi_mbox_process_msg()
55 	ret = scmi_read_resp_from_smt(dev, &chan->smt, msg);  in scmi_mbox_process_msg()
60 	return ret;  in scmi_mbox_process_msg()
66 	int ret;  in scmi_mbox_probe()  local
70 	ret = mbox_get_by_index(dev, 0, &chan->mbox);  in scmi_mbox_probe()
71 	if (ret) {  in scmi_mbox_probe()
72 		dev_err(dev, "Failed to find mailbox: %d\n", ret);  in scmi_mbox_probe()
76 	ret = scmi_dt_get_smt_buffer(dev, &chan->smt);  in scmi_mbox_probe()
77 	if (ret)  in scmi_mbox_probe()
78 		dev_err(dev, "Failed to get shm resources: %d\n", ret);  in scmi_mbox_probe()
81 	if (ret)  in scmi_mbox_probe()
84 	return ret;  in scmi_mbox_probe()