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iio: adc: ad4000: Check for error code from devm_mutex_init() call

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Even if it's not critical, the avoidance of checking the error code
from devm_mutex_init() call today diminishes the point of using devm
variant of it. Tomorrow it may even leak something. Add the missed
check.

Fixes: 938fd562b9 ("iio: adc: Add support for AD4000")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20241030162013.2100253-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Andy Shevchenko
2024-10-30 18:19:18 +02:00
committed by Jonathan Cameron
parent f35f3c832e
commit 8ebfd09255
1 changed files with 3 additions and 1 deletions
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4
drivers/iio/adc/ad4000.c
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@@ -637,7 +637,9 @@ static int ad4000_probe(struct spi_device *spi)
indio_dev->name = chip->dev_name;
indio_dev->num_channels = 1;
devm_mutex_init(dev, &st->lock);
ret = devm_mutex_init(dev, &st->lock);
if (ret)
return ret;
st->gain_milli = 1000;
if (chip->has_hardware_gain) {