[PATCH v2 08/10] platform/chrome: cros_ec_proto: return -EAGAIN when retries timed out

[Tzung-Bi Shih]

While EC_COMMS_STATUS_PROCESSING flag is still on after it tries
EC_COMMAND_RETRIES times for sending EC_CMD_GET_COMMS_STATUS,
cros_ec_wait_until_complete() doesn't return an error code.

Return -EAGAIN in the case instead.

Signed-off-by: Tzung-Bi Shih <tzungbi@xxxxxxxxxx>
---
No changes from v1.

 drivers/platform/chrome/cros_ec_proto.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c
index a6ad7f7956e6..9dec475edc84 100644
--- a/drivers/platform/chrome/cros_ec_proto.c
+++ b/drivers/platform/chrome/cros_ec_proto.c
@@ -167,6 +167,9 @@ static int cros_ec_wait_until_complete(struct cros_ec_device *ec_dev, uint32_t *
 			return ret;
 	}
 
+	if (i >= EC_COMMAND_RETRIES)
+		ret = -EAGAIN;
+
 	return ret;
 }
 
-- 
2.37.0.170.g444d1eabd0-goog