From a4c18ea894e5587bcc6be787fcd77c0c19beaa1d Mon Sep 17 00:00:00 2001 From: Miao Li Date: Mon, 4 May 2026 11:04:08 +0800 Subject: [PATCH] iio: light: stk3310: Use sizeof() for regmap_bulk_read/write count parameter Convert the hardcoded count parameter to sizeof(buf) for all regmap_bulk_write() and regmap_bulk_read() calls in this driver to improve code maintainability. For details, see [1]. Link: https://lore.kernel.org/all/20260428192213.7c5c80e5@jic23-huawei/ #[1] Signed-off-by: Miao Li Reviewed-by: Joshua Crofts Signed-off-by: Jonathan Cameron --- drivers/iio/light/stk3310.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c index fb3d9821edeeb..60407bc87ccf4 100644 --- a/drivers/iio/light/stk3310.c +++ b/drivers/iio/light/stk3310.c @@ -271,7 +271,7 @@ static int stk3310_read_event(struct iio_dev *indio_dev, return -EINVAL; mutex_lock(&data->lock); - ret = regmap_bulk_read(data->regmap, reg, &buf, 2); + ret = regmap_bulk_read(data->regmap, reg, &buf, sizeof(buf)); mutex_unlock(&data->lock); if (ret < 0) { dev_err(&data->client->dev, "register read failed\n"); @@ -311,7 +311,7 @@ static int stk3310_write_event(struct iio_dev *indio_dev, return -EINVAL; buf = cpu_to_be16(val); - ret = regmap_bulk_write(data->regmap, reg, &buf, 2); + ret = regmap_bulk_write(data->regmap, reg, &buf, sizeof(buf)); if (ret < 0) { dev_err(&client->dev, "failed to set PS threshold!\n"); return ret; @@ -389,7 +389,7 @@ static int stk3310_read_raw(struct iio_dev *indio_dev, reg = STK3310_REG_PS_DATA_MSB; mutex_lock(&data->lock); - ret = regmap_bulk_read(data->regmap, reg, &buf, 2); + ret = regmap_bulk_read(data->regmap, reg, &buf, sizeof(buf)); if (ret < 0) { dev_err(&client->dev, "register read failed\n"); mutex_unlock(&data->lock); @@ -739,7 +739,7 @@ static int stk3310_resume(struct device *dev) if (data->ps_thdl != 0x0) { buf = cpu_to_be16(data->ps_thdl); - ret = regmap_bulk_write(data->regmap, STK3310_REG_THDL_PS, &buf, 2); + ret = regmap_bulk_write(data->regmap, STK3310_REG_THDL_PS, &buf, sizeof(buf)); if (ret < 0) { dev_err(dev, "failed to set reg THDL_PS at resume.\n"); return ret; @@ -748,7 +748,7 @@ static int stk3310_resume(struct device *dev) if (data->ps_thdh != STK3310_PS_MAX_VAL) { buf = cpu_to_be16(data->ps_thdh); - ret = regmap_bulk_write(data->regmap, STK3310_REG_THDH_PS, &buf, 2); + ret = regmap_bulk_write(data->regmap, STK3310_REG_THDH_PS, &buf, sizeof(buf)); if (ret < 0) { dev_err(dev, "failed to set reg THDH_PS at resume.\n"); return ret; -- 2.47.3