FAILED: patch "[PATCH] iio: light: ltr501: Power down chip if request irq fails" failed to apply to 5.15-stable tree

FAILED: patch "[PATCH] iio: light: ltr501: Power down chip if request irq fails" failed to apply to 5.15-stable tree

[Sasha Levin]

The patch below does not apply to the 5.15-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 <stable@vger.kernel.org>.

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-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 8a9bcd587d7d768e6c8e9fff88bb89645e412731
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '20261107055712-failed-5.15-8a9bcd587d7d@kernel.org' --subject-prefix 'PATCH 5.15.y' 'HEAD^..'

Thanks,
Sasha

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

From 8a9bcd587d7d768e6c8e9fff88bb89645e412731 Mon Sep 17 00:00:00 2001
From: Esben Haabendal <esben@geanix.com>
Date: Mon, 17 Aug 2026 19:08:53 +0200
Subject: [PATCH] iio: light: ltr501: Power down chip if request irq fails

In case devm_request_threaded_irq() failed, we were leaving the chip
powered instead of powering it down again. Power down the chip switching
ALS and PS modes to standby.

Fixes: 7ac702b3144b ("iio: ltr501: Add interrupt support")
Cc: stable@vger.kernel.org
Acked-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
---
 drivers/iio/light/ltr501.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c
index fa0d16890c8bf..b36bd10a02624 100644
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -1538,7 +1538,7 @@ static int ltr501_probe(struct i2c_client *client)
 						"ltr501_thresh_event",
 						indio_dev);
 		if (ret)
-			return ret;
+			goto powerdown_on_error;
 	} else {
 		indio_dev->info = data->chip_info->info_no_irq;
 	}
-- 
2.53.0

[PATCH 5.15.y] iio: light: ltr501: Power down chip if request irq fails

[Sasha Levin]

From: Esben Haabendal <esben@geanix.com>

[ Upstream commit 8a9bcd587d7d768e6c8e9fff88bb89645e412731 ]

In case devm_request_threaded_irq() failed, we were leaving the chip
powered instead of powering it down again. Power down the chip switching
ALS and PS modes to standby.

Fixes: 7ac702b3144b ("iio: ltr501: Add interrupt support")
Cc: stable@vger.kernel.org
Acked-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
[ sashal: adjusted context for the existing IRQ request failure logging block ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iio/light/ltr501.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c
index f0bd0ad34f222..a5275165d7fe2 100644
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -1510,7 +1510,7 @@ static int ltr501_probe(struct i2c_client *client,
 		if (ret) {
 			dev_err(&client->dev, "request irq (%d) failed\n",
 				client->irq);
-			return ret;
+			goto powerdown_on_error;
 		}
 	} else {
 		indio_dev->info = data->chip_info->info_no_irq;
-- 
2.53.0