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Sat, 23 May 2026 11:44:34 -0700 (PDT) Received: from localhost.localdomain ([94.158.61.193]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-490454ea134sm148505855e9.8.2026.05.23.11.44.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 23 May 2026 11:44:34 -0700 (PDT) From: Stepan Ionichev To: wbg@kernel.org Cc: o.rempel@pengutronix.de, kernel@pengutronix.de, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, andy@kernel.org, sozdayvek@gmail.com Subject: [PATCH] counter: interrupt-cnt: use devm_mutex_init() Date: Sat, 23 May 2026 23:44:18 +0500 Message-Id: <20260523184418.7586-1-sozdayvek@gmail.com> X-Mailer: git-send-email 2.33.0.windows.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" interrupt_cnt_probe() calls mutex_init() but neither this driver nor the counter core issues a matching mutex_destroy() on unbind, so the lock debug state is leaked. Switch to devm_mutex_init() so the mutex is torn down in the same devm scope it was set up in. Signed-off-by: Stepan Ionichev Reviewed-by: Joshua Crofts --- drivers/counter/interrupt-cnt.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/counter/interrupt-cnt.c b/drivers/counter/interrupt-cn= t.c index e6100b5fb..cd475382a 100644 --- a/drivers/counter/interrupt-cnt.c +++ b/drivers/counter/interrupt-cnt.c @@ -233,7 +233,9 @@ static int interrupt_cnt_probe(struct platform_device *= pdev) if (ret) return ret; =20 - mutex_init(&priv->lock); + ret =3D devm_mutex_init(dev, &priv->lock); + if (ret) + return ret; =20 ret =3D devm_counter_add(dev, counter); if (ret < 0) --=20 2.43.0