From: Felix Gu <ustc.gu@gmail.com>
Date: Fri, 27 Feb 2026 17:48:19 +0000 (+0800)
Subject: iio: adc: ti-ads1119: Fix unbalanced pm reference count in ds1119_single_conversion()
X-Git-Tag: v7.0-rc7~8^2~25^2~24
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=48a5c36577ebe0144f8ede70e59b59ea18b75089;p=thirdparty%2Fkernel%2Fstable.git

iio: adc: ti-ads1119: Fix unbalanced pm reference count in ds1119_single_conversion()

In ads1119_single_conversion(), if pm_runtime_resume_and_get() fails,
the code jumps to the pdown label, which calls
pm_runtime_put_autosuspend().

Since pm_runtime_resume_and_get() automatically decrements the usage
counter on failure, the subsequent call to pm_runtime_put_autosuspend()
causes an unbalanced reference counter.

Fixes: a9306887eba4 ("iio: adc: ti-ads1119: Add driver")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Reviewed-by: João Paulo Gonçalves <jpaulo.silvagoncalves@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---

diff --git a/drivers/iio/adc/ti-ads1119.c b/drivers/iio/adc/ti-ads1119.c
index c9cedc59cdcdb..4454f28b2b58e 100644
--- a/drivers/iio/adc/ti-ads1119.c
+++ b/drivers/iio/adc/ti-ads1119.c
@@ -274,7 +274,7 @@ static int ads1119_single_conversion(struct ads1119_state *st,
 
 	ret = pm_runtime_resume_and_get(dev);
 	if (ret)
-		goto pdown;
+		return ret;
 
 	ret = ads1119_configure_channel(st, mux, gain, datarate);
 	if (ret)