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authorSlawomir Stepien <sst@poczta.fm>2018-12-02 12:42:35 +0100
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2018-12-02 15:36:28 +0000
commit794e20ee038ea368f3f099d196792b024fb3170c (patch)
tree65f78c44b966af12ffc204b01533681155205a0d /drivers/staging/iio/adc
parent53e8785c248df097364b75e550d06bbc58db8af8 (diff)
staging: iio: adc: ad7280a: fix overwrite of the returned value
The ret returned from ad7280_chain_setup() is needed to initialize the slave_num. Don't overwrite it with call to devm_add_action_or_reset(). Fixes: cc9c58ef6e06 ("staging: iio: adc: ad7280a: use devm_* APIs") Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/staging/iio/adc')
-rw-r--r--drivers/staging/iio/adc/ad7280a.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c
index 7a0ba26f9fd9..14f6a3ced060 100644
--- a/drivers/staging/iio/adc/ad7280a.c
+++ b/drivers/staging/iio/adc/ad7280a.c
@@ -879,15 +879,15 @@ static int ad7280_probe(struct spi_device *spi)
if (ret < 0)
return ret;
- ret = devm_add_action_or_reset(&spi->dev, ad7280_sw_power_down, st);
- if (ret)
- return ret;
-
st->slave_num = ret;
st->scan_cnt = (st->slave_num + 1) * AD7280A_NUM_CH;
st->cell_threshhigh = 0xFF;
st->aux_threshhigh = 0xFF;
+ ret = devm_add_action_or_reset(&spi->dev, ad7280_sw_power_down, st);
+ if (ret)
+ return ret;
+
/*
* Total Conversion Time = ((tACQ + tCONV) *
* (Number of Conversions per Part)) −