patch "iio: accel: kxsd9: fix runtime PM imbalance on write_raw() error" added to char-misc-linus

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

iio: accel: kxsd9: fix runtime PM imbalance on write_raw() error

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 44a5fd874bb6873bdaec59f722c1d57832fbc9df Mon Sep 17 00:00:00 2001
From: Biren Pandya <[email protected]>
Date: Sun, 14 Jun 2026 12:45:46 +0530
Subject: iio: accel: kxsd9: fix runtime PM imbalance on write_raw() error

kxsd9_write_raw() takes a runtime PM reference with pm_runtime_get_sync() but returns -EINVAL directly when a scale with a non-zero integer part is requested, skipping the matching pm_runtime_put_autosuspend(). This leaks a runtime PM usage-counter reference on every such write, after which the device can no longer autosuspend.

Set the error code and fall through to the existing put instead of returning early.

---
 drivers/iio/accel/kxsd9.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

index 4717d80fc24a..7ac885d94d7f 100644
@@ -147,8 +147,9 @@ static int kxsd9_write_raw(struct iio_dev *indio_dev,
 	if (mask == IIO_CHAN_INFO_SCALE) {
 		/* Check no integer component */
 		if (val)
-			return -EINVAL;
-		ret = kxsd9_write_scale(indio_dev, val2);
+			ret = -EINVAL;
+		else
+			ret = kxsd9_write_scale(indio_dev, val2);
 	}
 
 	pm_runtime_put_autosuspend(st->dev);

2.55.0