linux-kernel - [PATCH AUTOSEL 6.14 02/15] iio: adc: qcom-spmi-iadc: Fix wakeup source leaks on device unbind

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Message-Id: <20250512180352.437356-2-sashal@kernel.org>
Date: Mon, 12 May 2025 14:03:37 -0400
From: Sasha Levin <sashal@...nel.org>
To: patches@...ts.linux.dev,
	stable@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Sasha Levin <sashal@...nel.org>,
	jic23@...nel.org,
	linux-arm-msm@...r.kernel.org,
	linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH AUTOSEL 6.14 02/15] iio: adc: qcom-spmi-iadc: Fix wakeup source leaks on device unbind

From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

[ Upstream commit ad3764b45c1524872b621d5667a56f6a574501bd ]

Device can be unbound, so driver must also release memory for the wakeup
source.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Link: https://patch.msgid.link/20250406-b4-device-wakeup-leak-iio-v1-2-2d7d322a4a93@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/iio/adc/qcom-spmi-iadc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/qcom-spmi-iadc.c b/drivers/iio/adc/qcom-spmi-iadc.c
index 7fb8b2499a1d0..b64a8a407168b 100644
--- a/drivers/iio/adc/qcom-spmi-iadc.c
+++ b/drivers/iio/adc/qcom-spmi-iadc.c
@@ -543,7 +543,9 @@ static int iadc_probe(struct platform_device *pdev)
 		else
 			return ret;
 	} else {
-		device_init_wakeup(iadc->dev, 1);
+		ret = devm_device_init_wakeup(iadc->dev);
+		if (ret)
+			return dev_err_probe(iadc->dev, ret, "Failed to init wakeup\n");
 	}
 
 	ret = iadc_update_offset(iadc);
-- 
2.39.5