Hi, Sorry to go back on this, but I noticed something.. On Tue, Sep 03, 2024 at 04:30:28PM +0000, Łukasz Bartosik wrote: > +static int cros_ucsi_async_control(struct ucsi *ucsi, u64 cmd) > +{ > + struct cros_ucsi_data *udata = ucsi_get_drvdata(ucsi); > + struct ec_params_ucsi_ppm_set *req; > + size_t req_len; > + int ret; > + > + req_len = sizeof(struct ec_params_ucsi_ppm_set) + sizeof(cmd); > + req = kzalloc(req_len, GFP_KERNEL); > + if (!req) > + return -ENOMEM; Where is the memory for req released? First I though that cros_ec_cmd() does it, but it's actually allocating it's own cros_ec_command, and then releasing that in the end, so I just got confused about it. Is this a memory leak, or am I missing something? > + > + req->offset = UCSI_CONTROL; > + memcpy(req->data, &cmd, sizeof(cmd)); > + ret = cros_ec_cmd(udata->ec, 0, EC_CMD_UCSI_PPM_SET, > + req, req_len, NULL, 0); > + if (ret < 0) { > + dev_warn(udata->dev, "Failed to send EC message UCSI_PPM_SET: error=%d", ret); > + return ret; > + } > + return 0; > +} thanks, -- heikki