From ab90d20d3e8f584799e5ea11f67d6dc1aa6cb52d Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Wed, 30 Oct 2024 18:19:19 +0200 Subject: [PATCH] iio: adc: pac1921: Check for error code from devm_mutex_init() call [ Upstream commit 869aa5e847696bcda8966be9d03de2560226bcc3 ] 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: 371f778b83cd ("iio: adc: add support for pac1921") Signed-off-by: Andy Shevchenko Acked-by: Matteo Martelli Link: https://patch.msgid.link/20241030162013.2100253-3-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin --- drivers/iio/adc/pac1921.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/iio/adc/pac1921.c b/drivers/iio/adc/pac1921.c index 36e813d9c73f..fe1d9e07fce2 100644 --- a/drivers/iio/adc/pac1921.c +++ b/drivers/iio/adc/pac1921.c @@ -1171,7 +1171,9 @@ static int pac1921_probe(struct i2c_client *client) return dev_err_probe(dev, (int)PTR_ERR(priv->regmap), "Cannot initialize register map\n"); - devm_mutex_init(dev, &priv->lock); + ret = devm_mutex_init(dev, &priv->lock); + if (ret) + return ret; priv->dv_gain = PAC1921_DEFAULT_DV_GAIN; priv->di_gain = PAC1921_DEFAULT_DI_GAIN;