linux-kernel - [PATCH] iio: hid-sensor-als: Return 0 for HID_USAGE_SENSOR_TIME

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Message-Id: <20240204125617.2635574-1-srinivas.pandruvada@linux.intel.com>
Date: Sun,  4 Feb 2024 04:56:17 -0800
From: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To: jikos@...nel.org,
	jic23@...nel.org,
	lars@...afoo.de,
	Basavaraj.Natikar@....com
Cc: linux-input@...r.kernel.org,
	linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject: [PATCH] iio: hid-sensor-als: Return 0 for HID_USAGE_SENSOR_TIME_TIMESTAMP

When als_capture_sample() is called with usage ID
HID_USAGE_SENSOR_TIME_TIMESTAMP, return 0. The HID sensor core ignores
the return value for capture_sample() callback, so return value doesn't
make difference. But correct the return value to return success instead
of -EINVAL.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
---
As part of review comments for series "Add support of color temperature
and chromaticity". This is separate from the series as this is
unrelated.

 drivers/iio/light/hid-sensor-als.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
index 5cd27f04b45e..b6c4bef2a7bb 100644
--- a/drivers/iio/light/hid-sensor-als.c
+++ b/drivers/iio/light/hid-sensor-als.c
@@ -226,6 +226,7 @@ static int als_capture_sample(struct hid_sensor_hub_device *hsdev,
 	case HID_USAGE_SENSOR_TIME_TIMESTAMP:
 		als_state->timestamp = hid_sensor_convert_timestamp(&als_state->common_attributes,
 								    *(s64 *)raw_data);
+		ret = 0;
 		break;
 	default:
 		break;
-- 
2.43.0