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Sun, 24 May 2026 12:26:10 -0700 (PDT) From: Sanjay Chitroda X-Google-Original-From: Sanjay Chitroda To: jikos@kernel.org, jic23@kernel.org, srinivas.pandruvada@linux.intel.com Cc: dlechner@baylibre.com, nuno.sa@analog.com, andy@kernel.org, sanjayembeddedse@gmail.com, sakari.ailus@linux.intel.com, linux-input@vger.kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 12/36] iio: humidity: hid-sensor-humidity: use common device for devres Date: Mon, 25 May 2026 00:55:49 +0530 Message-Id: <20260524192556.1195042-3-sanjayembedded@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260524192556.1195042-1-sanjayembedded@gmail.com> References: <20260524192556.1195042-1-sanjayembedded@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Sanjay Chitroda kmemdup() is used for memory that is logically tied to the HID platform device, even though the driver binds into the IIO framework. Using &indio_dev->dev for devres allocations works functionally, but it results in two separate devres ownership trees—one for the HID platform device (pdev) and another for the IIO device (indio_dev). The devres framework is intended to have a single, well-defined parent device. Since the memory originates from HID sensor probing and is not IIO-specific, &pdev->dev is the correct and logical owner. Switch to using the platform device for devm_kmemdup() so that all resources are released deterministically and consistently. Signed-off-by: Sanjay Chitroda Tested-by: Zhang Lixu --- drivers/iio/humidity/hid-sensor-humidity.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/humidity/hid-sensor-humidity.c b/drivers/iio/humidity/hid-sensor-humidity.c index 6fed019f4099..73120b87d641 100644 --- a/drivers/iio/humidity/hid-sensor-humidity.c +++ b/drivers/iio/humidity/hid-sensor-humidity.c @@ -215,7 +215,7 @@ static int hid_humidity_probe(struct platform_device *pdev) if (ret) return ret; - humid_chans = devm_kmemdup(&indio_dev->dev, humidity_channels, + humid_chans = devm_kmemdup(&pdev->dev, humidity_channels, sizeof(humidity_channels), GFP_KERNEL); if (!humid_chans) return -ENOMEM; -- 2.34.1