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Subject[PATCH v3 21/23] platform/chrome: cros_ec_proto: return 0 on getting wake mask success
Date
cros_ec_get_host_event_wake_mask() used to return value from
send_command() which is number of bytes for input payload on success
(i.e. sizeof(struct ec_response_host_event_mask)).

However, the callers don't need to know how many bytes are available.

Don't return number of available bytes. Instead, return 0 on success;
otherwise, negative integers on error.

Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
---
Changes from v2:
- Separate Kunit test to another patch.

Changes from v1:
- Return 0 on success; otherwise, negative intergers.

drivers/platform/chrome/cros_ec_proto.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c
index 9e95f9e4b2f8..68a411e84744 100644
--- a/drivers/platform/chrome/cros_ec_proto.c
+++ b/drivers/platform/chrome/cros_ec_proto.c
@@ -236,7 +236,7 @@ EXPORT_SYMBOL(cros_ec_check_result);
*
* @ec_dev: EC device to call
* @msg: message structure to use
- * @mask: result when function returns >=0.
+ * @mask: result when function returns 0.
*
* LOCKING:
* the caller has ec_dev->lock mutex, or the caller knows there is
@@ -266,6 +266,7 @@ static int cros_ec_get_host_event_wake_mask(struct cros_ec_device *ec_dev, uint3
if (ret > 0) {
r = (struct ec_response_host_event_mask *)msg->data;
*mask = r->mask;
+ ret = 0;
}

exit:
--
2.36.1.255.ge46751e96f-goog
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