[PATCH v4 06/21] platform/chrome: cros_ec_proto: use cros_ec_map_error()

[Tzung-Bi Shih <tzungbi@kernel.org>]

Use cros_ec_map_error() in cros_ec_get_host_event_wake_mask().

The behavior of cros_ec_get_host_event_wake_mask() slightly changed.  It
is acceptable because the caller only needs it returns negative integers
for indicating errors.  Especially, the EC_RES_INVALID_COMMAND still
maps to -EOPNOTSUPP.

Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
---
No change from v2 and v3.

Changes from v1:
- Add R-b tag.

 drivers/platform/chrome/cros_ec_proto.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c
index 1b851dcd20c9..71ba6a56ad7c 100644
--- a/drivers/platform/chrome/cros_ec_proto.c
+++ b/drivers/platform/chrome/cros_ec_proto.c
@@ -247,7 +247,7 @@ static int cros_ec_get_host_event_wake_mask(struct cros_ec_device *ec_dev,
 					    uint32_t *mask)
 {
 	struct ec_response_host_event_mask *r;
-	int ret;
+	int ret, mapped;
 
 	msg->command = EC_CMD_HOST_EVENT_GET_WAKE_MASK;
 	msg->version = 0;
@@ -256,10 +256,9 @@ static int cros_ec_get_host_event_wake_mask(struct cros_ec_device *ec_dev,
 
 	ret = send_command(ec_dev, msg);
 	if (ret >= 0) {
-		if (msg->result == EC_RES_INVALID_COMMAND)
-			return -EOPNOTSUPP;
-		if (msg->result != EC_RES_SUCCESS)
-			return -EPROTO;
+		mapped = cros_ec_map_error(msg->result);
+		if (mapped)
+			return mapped;
 	}
 	if (ret > 0) {
 		r = (struct ec_response_host_event_mask *)msg->data;
-- 
2.36.1.255.ge46751e96f-goog