This is a note to let you know that I've just added the patch titled

iio: adc: rzg2l_adc: Set driver data before enabling runtime PM

to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From c69e13965f26b8058f538ea8bdbd2d7718cf1fbe Mon Sep 17 00:00:00 2001 From: Claudiu Beznea claudiu.beznea.uj@bp.renesas.com Date: Sun, 10 Aug 2025 15:33:28 +0300 Subject: iio: adc: rzg2l_adc: Set driver data before enabling runtime PM

When stress-testing the system by repeatedly unbinding and binding the ADC device in a loop, and the ADC is a supplier for another device (e.g., a thermal hardware block that reads temperature through the ADC), it may happen that the ADC device is runtime-resumed immediately after runtime PM is enabled, triggered by its consumer. At this point, since drvdata is not yet set and the driver's runtime PM callbacks rely on it, a crash can occur. To avoid this, set drvdata just after it was allocated.

Fixes: 89ee8174e8c8 ("iio: adc: rzg2l_adc: Simplify the runtime PM code") Signed-off-by: Claudiu Beznea claudiu.beznea.uj@bp.renesas.com Link: https://patch.msgid.link/20250810123328.800104-3-claudiu.beznea.uj@bp.renesa... Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com --- drivers/iio/adc/rzg2l_adc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/adc/rzg2l_adc.c b/drivers/iio/adc/rzg2l_adc.c index 0cb5a67fd497..cadb0446bc29 100644 --- a/drivers/iio/adc/rzg2l_adc.c +++ b/drivers/iio/adc/rzg2l_adc.c @@ -427,6 +427,8 @@ static int rzg2l_adc_probe(struct platform_device *pdev) if (!indio_dev) return -ENOMEM;

+ platform_set_drvdata(pdev, indio_dev); + adc = iio_priv(indio_dev);

adc->hw_params = device_get_match_data(dev); @@ -459,8 +461,6 @@ static int rzg2l_adc_probe(struct platform_device *pdev) if (ret) return ret;

- platform_set_drvdata(pdev, indio_dev); - ret = rzg2l_adc_hw_init(dev, adc); if (ret) return dev_err_probe(&pdev->dev, ret,