From 1987a08cd989fd9e5690e90a04e70046e93315f4 Mon Sep 17 00:00:00 2001
From: Fabrice Gasnier <fabrice.gasnier@st.com>
Date: Thu, 27 Jul 2017 18:18:58 +0200
Subject: [PATCH] iio: trigger: stm32-timer: fix write_raw return value
Git-commit: 1987a08cd989fd9e5690e90a04e70046e93315f4
Patch-mainline: v4.13-rc7
References: bsc#1051510
Fixes: 4adec7da0536 ("iio: stm32 trigger: Add quadrature encoder device")
IIO core expects zero as return value for write_raw() callback
in case of success.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/iio/trigger/stm32-timer-trigger.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c
index 6aa73d6b2882..107918b3a90b 100644
--- a/drivers/iio/trigger/stm32-timer-trigger.c
+++ b/drivers/iio/trigger/stm32-timer-trigger.c
@@ -406,9 +406,8 @@ static int stm32_counter_write_raw(struct iio_dev *indio_dev,
switch (mask) {
case IIO_CHAN_INFO_RAW:
- regmap_write(priv->regmap, TIM_CNT, val);
+ return regmap_write(priv->regmap, TIM_CNT, val);
- return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
/* fixed scale */
return -EINVAL;
--
2.18.0