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Fri, 14 Aug 2026 02:07:58 -0700 (PDT) From: Arka Mondal To: nuno.sa@analog.com, Michael.Hennerich@analog.com, jic23@kernel.org Cc: dlechner@baylibre.com, andy@kernel.org, venkat.prashanth2498@gmail.com, rohitsarkar5398@gmail.com, linux@analog.com, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Arka Mondal Subject: [PATCH 2/3] iio: imu: adis16400: fix unprotected debugfs reads Date: Fri, 14 Aug 2026 18:07:27 +0900 Message-ID: <20260814090728.965922-2-arkamondalofficial@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260814090728.965922-1-arkamondalofficial@gmail.com> References: <20260814090728.965922-1-arkamondalofficial@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The serial_number file operations are open coded and never call debugfs_file_get(), which debugfs_create_file_unsafe() requires. debugfs_remove_recursive() therefore does not wait for a read in progress, and unbind frees the iio_dev underneath it. Use debugfs_create_file() instead. Fixes: ae1d37a9bb4b ("iio: imu: adis16400: use DEFINE_DEBUGFS_ATTRIBUTE instead of DEFINE_SIMPLE_ATTRIBUTE") Signed-off-by: Arka Mondal --- Compile tested only; no relevant hardware available. drivers/iio/imu/adis16400.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/imu/adis16400.c b/drivers/iio/imu/adis16400.c index 36323ad149e0..7e85c1b8dc16 100644 --- a/drivers/iio/imu/adis16400.c +++ b/drivers/iio/imu/adis16400.c @@ -280,7 +280,7 @@ static void adis16400_debugfs_init(struct iio_dev *indio_dev) return; if (st->variant->flags & ADIS16400_HAS_SERIAL_NUMBER) - debugfs_create_file_unsafe("serial_number", 0400, + debugfs_create_file("serial_number", 0400, d, st, &adis16400_serial_number_fops); if (st->variant->flags & ADIS16400_HAS_PROD_ID) debugfs_create_file_unsafe("product_id", 0400, -- 2.55.0