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([2001:41d0:303:db6b::]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4a1cca31234sm256606155e9.4.2026.10.20.08.41.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Oct 2026 08:41:20 -0700 (PDT) From: Tristan Madani To: Chanwoo Choi , MyungJoo Ham , Krzysztof Kozlowski Cc: Kyungmin Park , Seung-Woo Kim , linux-kernel@vger.kernel.org, stable@vger.kernel.org, Tristan Madani Subject: [PATCH 0/5] extcon: cancel wq_detcable delayed work on driver unbind Date: Tue, 20 Oct 2026 15:41:14 +0000 Message-ID: <20261020154119.2568395-1-tristmd@gmail.com> X-Mailer: git-send-email 2.47.3 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 From: Tristan Madani Several extcon MUIC drivers schedule a delayed work (wq_detcable) during probe for post-boot cable state detection, but never cancel it on driver unbind. If the device is removed before the work fires, the callback dereferences freed memory. Use devm_delayed_work_autocancel() to tie the work lifecycle to the device. This matches the pattern already used by extcon-gpio, extcon-palmas, extcon-qcom-spmi-misc, and extcon-intel-int3496. For the Maxim drivers (max14577, max77693, max8997), irq_work was already converted to devm_work_autocancel() but wq_detcable was missed. The rt8973a and sm5502 drivers also need the devm-helpers.h include. Tristan Madani (5): extcon: max14577: cancel wq_detcable on driver unbind extcon: max77693: cancel wq_detcable on driver unbind extcon: max8997: cancel wq_detcable on driver unbind extcon: rt8973a: cancel wq_detcable on driver unbind extcon: sm5502: cancel wq_detcable on driver unbind drivers/extcon/extcon-max14577.c | 5 ++++- drivers/extcon/extcon-max77693.c | 5 ++++- drivers/extcon/extcon-max8997.c | 5 ++++- drivers/extcon/extcon-rt8973a.c | 6 +++++- drivers/extcon/extcon-sm5502.c | 6 +++++- 5 files changed, 22 insertions(+), 5 deletions(-) -- 2.47.3