@@ -117,7 +117,7 @@ static int get_lightbar_version(struct cros_ec_dev *ec,
param = (struct ec_params_lightbar *)msg->data;
param->cmd = LIGHTBAR_CMD_VERSION;
ret = cros_ec_cmd_xfer_status(ec->ec_dev, msg);
- if (ret < 0) {
+ if (ret < 0 && ret != -EINVAL) {
ret = 0;
goto exit;
}
@@ -298,11 +298,9 @@ static ssize_t sequence_show(struct device *dev,
goto exit;
ret = cros_ec_cmd_xfer_status(ec->ec_dev, msg);
- if (ret == -EPROTO) {
- ret = scnprintf(buf, PAGE_SIZE,
- "ERROR: EC returned %d\n", msg->result);
- goto exit;
- } else if (ret < 0) {
+ if (ret < 0) {
+ ret = scnprintf(buf, PAGE_SIZE, "XFER / EC ERROR %d / %d\n",
+ ret, msg->result);
goto exit;
}
Since commit c5cd2b47b203 ("platform/chrome: cros_ec_proto: Report command not supported") we can no longer assume that cros_ec_cmd_xfer_status() reports -EPROTO for all errors returned by the EC itself. A follow-up patch will change cros_ec_cmd_xfer_status() to report additional errors reported by the EC as distinguished Linux error codes. Handle this change by no longer assuming that -EPROTO is used to report all errors returned by the EC itself. Since errors reported by the EC are already reported in text form through sysfs attributes, extend this form of error reporting to all errors reported by cros_ec_cmd_xfer_status(). Cc: Gwendal Grignou <gwendal@chromium.org> Cc: Yu-Hsuan Hsu <yuhsuan@chromium.org> Cc: Prashant Malani <pmalani@chromium.org> Cc: Brian Norris <briannorris@chromium.org> Reviewed-by: Brian Norris <briannorris@chromium.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> --- v4: No change v3: No change v2: Added patch drivers/platform/chrome/cros_ec_lightbar.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-)