This is a note to let you know that I've just added the patch titled
iio: adc: pac1921: Check for error code from devm_mutex_init() call
to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iio-adc-pac1921-check-for-error-code-from-devm_mutex.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit f0e4dc2bb4f2a286bb8f54f907f4b420911299ed
Author: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Date: Wed Oct 30 18:19:19 2024 +0200
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 <andriy.shevchenko@xxxxxxxxxxxxxxx>
Acked-by: Matteo Martelli <matteomartelli3@xxxxxxxxx>
Link: https://patch.msgid.link/20241030162013.2100253-3-andriy.shevchenko@xxxxxxxxxxxxxxx
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/iio/adc/pac1921.c b/drivers/iio/adc/pac1921.c
index 36e813d9c73f1..fe1d9e07fce24 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;
