[PATCH] iio: trigger: fix memory leak in viio_trigger_alloc()

[Ashwin Gundarapu]

From: Ashwin Gundarapu <linuxuser509@xxxxxxxxxxx>
Date: Fri, 22 May 2026 14:34:46 +0530
Subject: [PATCH] iio: trigger: fix memory leak in viio_trigger_alloc()

Replace direct kfree() with put_device() in the error path after
device_initialize() has been called.

The direct kfree() bypasses the reference counting mechanism,
causing memory leak and potential use-after-free.

Signed-off-by: Ashwin Gundarapu <linuxuser509@xxxxxxxxxxx>
---
 drivers/iio/industrialio-trigger.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index 17781c12bc85..9c72e7ae996c 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -598,7 +598,7 @@ struct iio_trigger *viio_trigger_alloc(struct device *parent,
 free_descs:
 	irq_free_descs(trig->subirq_base, CONFIG_IIO_CONSUMERS_PER_TRIGGER);
 free_trig:
-	kfree(trig);
+	put_device(&trig->dev);
 	return NULL;
 }

--
2.43.0