FAILED: patch "[PATCH] iio: light: bh1780: fix PM runtime leak on error path" failed to apply to 6.1-stable tree

The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x dd72e6c3cdea05cad24e99710939086f7a113fb5
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2026031707-pull-leverage-a222@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..

Possible dependencies:

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From dd72e6c3cdea05cad24e99710939086f7a113fb5 Mon Sep 17 00:00:00 2001
From: Antoniu Miclaus <[email protected]>
Date: Fri, 30 Jan 2026 13:30:20 +0200
Subject: [PATCH] iio: light: bh1780: fix PM runtime leak on error path

Move pm_runtime_put_autosuspend() before the error check to ensure the PM runtime reference count is always decremented after pm_runtime_get_sync(), regardless of whether the read operation succeeds or fails.

index 5d3c6d5276ba..a740d1f992a8 100644
@@ -109,9 +109,9 @@ static int bh1780_read_raw(struct iio_dev *indio_dev,
 		case IIO_LIGHT:
 			pm_runtime_get_sync(&bh1780->client->dev);
 			value = bh1780_read_word(bh1780, BH1780_REG_DLOW);
+			pm_runtime_put_autosuspend(&bh1780->client->dev);
 			if (value < 0)
 				return value;
-			pm_runtime_put_autosuspend(&bh1780->client->dev);
 			*val = value;
 
 			return IIO_VAL_INT;

From: Antoniu Miclaus <[email protected]>

[ Upstream commit dd72e6c3cdea05cad24e99710939086f7a113fb5 ]

Move pm_runtime_put_autosuspend() before the error check to ensure the PM runtime reference count is always decremented after pm_runtime_get_sync(), regardless of whether the read operation succeeds or fails.

---
 drivers/iio/light/bh1780.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

index 90bca392b2620..725cfd50d9e4c 100644
@@ -109,10 +109,10 @@ static int bh1780_read_raw(struct iio_dev *indio_dev,
 		case IIO_LIGHT:
 			pm_runtime_get_sync(&bh1780->client->dev);
 			value = bh1780_read_word(bh1780, BH1780_REG_DLOW);
-			if (value < 0)
-				return value;
 			pm_runtime_mark_last_busy(&bh1780->client->dev);
 			pm_runtime_put_autosuspend(&bh1780->client->dev);
+			if (value < 0)
+				return value;
 			*val = value;
 
 			return IIO_VAL_INT;

2.51.0