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Tue, 27 Oct 2026 09:08:40 -0700 (PDT) Received: from NithishVelan.localdomain ([152.57.85.197]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-198a0e8d700sm40053759c88.10.2026.10.27.09.08.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Oct 2026 09:08:39 -0700 (PDT) From: Nithishvelan M To: Jonathan Cameron , Greg Kroah-Hartman Cc: Nuno Sa , Michael Hennerich , David Lechner , Andy Shevchenko , linux-iio@vger.kernel.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Nithishvelan M Subject: [PATCH] staging: iio: impedance-analyzer: ad5933: use devm_mutex_init() Date: Tue, 27 Oct 2026 16:08:29 +0000 Message-ID: <20261027160829.1731-1-mnithishvelan@gmail.com> X-Mailer: git-send-email 2.53.0 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Replace mutex_init() with devm_mutex_init() in ad5933_probe() and check its return value. The driver already uses devm_* helpers for its other resources and has no remove() callback, so this ensures the mutex is destroyed automatically on teardown when mutex debugging is enabled. No functional change intended. Compile-tested only. Signed-off-by: Nithishvelan M --- drivers/staging/iio/impedance-analyzer/ad5933.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c index c05a5f4b4..51d73c5ab 100644 --- a/drivers/staging/iio/impedance-analyzer/ad5933.c +++ b/drivers/staging/iio/impedance-analyzer/ad5933.c @@ -672,7 +672,9 @@ static int ad5933_probe(struct i2c_client *client) i2c_set_clientdata(client, indio_dev); st->client = client; - mutex_init(&st->lock); + ret = devm_mutex_init(&client->dev, &st->lock); + if (ret) + return ret; ret = devm_regulator_get_enable_read_voltage(&client->dev, "vdd"); if (ret < 0) -- 2.53.0