From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 35F4153444F for ; Wed, 9 Sep 2026 11:07:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788952065; cv=none; b=ernFAH/gr/TMPRdVu7auLM0oMsgIHArY0Gw3EDoY8e1DN6BCOg4OFjQ0ut8JAKem/s4QLF96CJMLMoqzQ4emBoa3bwbZ1sqDJJ4D7et2DdHf3hbA0UaG7VQS7ritoS901Co+D/OBzsrw2he4Pm0pt12PK6oigyIde+vIGiXyqiY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788952065; c=relaxed/simple; bh=vpqjBUjCUd4b+k1tRmZf9wOYjoHMtkk+27pWM3svxdk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jrl+Ue1WeDE7vlPEysDU3eRx23zZ0MbdsmZ0fNjjiZFyLuSy15YdAvXiRgEaWy3ww0HWNrYht5JDNduq0k2aYfgZf/Ayox6dfkDKdl9m/MJO+KAEHdn2S0BT93n1Ztjy+Aj+wVFdpVy4E5gXFilCYd4UHfFo2eYf/+c+ebFEUgg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Cu/VY0Vr; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Cu/VY0Vr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7AAC51F01568; Wed, 9 Sep 2026 11:07:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788952061; bh=zbwQPU1DHj2kn5Sw1RoeTqzsGfMSY/O0ziC0PKyteLY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Cu/VY0Vrikud+orXB7ek9x7lPu8PqnfF4o7VvRB12S+7rIpRg4y9gvjeGFfzVgfT/ V25fkv84IlKYxvSpVsn1QdEPcud+SQY0PSVL8PxlLzXTvzOM/6ZajM0nYD3eV1rao4 yRrcFI3/FE6jF6d9buQnXhu5qY+gyT8u2pciUADlXYh+0gK89SIFMNLoFTzmx6zamH MdMFSRUgVukvt2Xi2W9PlHI02cjcDFBJRPT9WmfBNlvfYUNiJh9gTfK4oIrS1JFV++ RaybIg9MYIo6PYGBf7I9chSoNqN9LlvoGpudZVSiqiuIRHEehMSjo6EixWb6oF9YWE 78b182vOquT4g== From: Sasha Levin To: stable@vger.kernel.org Cc: Andrew Davis , Sebastian Reichel , Sasha Levin Subject: [PATCH 5.15.y 2/3] power: supply: lp8788: Use devm_power_supply_register() helper Date: Wed, 9 Sep 2026 07:07:36 -0400 Message-ID: <20260909110737.1741580-2-sashal@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260909110737.1741580-1-sashal@kernel.org> References: <2026090352-endanger-avenue-c367@gregkh> <20260909110737.1741580-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Andrew Davis [ Upstream commit 2abb571143c39f581df9951d263948726db42d86 ] Use the device lifecycle managed register function. This helps prevent mistakes like unregistering out of order in cleanup functions and forgetting to unregister on error paths. Signed-off-by: Andrew Davis Link: https://lore.kernel.org/r/20240123163653.384385-7-afd@ti.com Signed-off-by: Sebastian Reichel Stable-dep-of: 831c29a12d56 ("power: supply: lp8788-charger: fix use-after-free on remove") Signed-off-by: Sasha Levin --- drivers/power/supply/lp8788-charger.c | 21 ++++++--------------- 1 file changed, 6 insertions(+), 15 deletions(-) diff --git a/drivers/power/supply/lp8788-charger.c b/drivers/power/supply/lp8788-charger.c index 20694deb05275..54f663ba95700 100644 --- a/drivers/power/supply/lp8788-charger.c +++ b/drivers/power/supply/lp8788-charger.c @@ -406,12 +406,6 @@ static const struct power_supply_desc lp8788_psy_battery_desc = { .get_property = lp8788_battery_get_property, }; -static void lp8788_psy_unregister(struct lp8788_charger *pchg) -{ - power_supply_unregister(pchg->battery); - power_supply_unregister(pchg->charger); -} - static void lp8788_charger_event(struct work_struct *work) { struct lp8788_charger *pchg = @@ -667,18 +661,16 @@ static int lp8788_psy_register(struct platform_device *pdev, charger_cfg.supplied_to = battery_supplied_to; charger_cfg.num_supplicants = ARRAY_SIZE(battery_supplied_to); - pchg->charger = power_supply_register(&pdev->dev, - &lp8788_psy_charger_desc, - &charger_cfg); + pchg->charger = devm_power_supply_register(&pdev->dev, + &lp8788_psy_charger_desc, + &charger_cfg); if (IS_ERR(pchg->charger)) return -EPERM; - pchg->battery = power_supply_register(&pdev->dev, - &lp8788_psy_battery_desc, NULL); - if (IS_ERR(pchg->battery)) { - power_supply_unregister(pchg->charger); + pchg->battery = devm_power_supply_register(&pdev->dev, + &lp8788_psy_battery_desc, NULL); + if (IS_ERR(pchg->battery)) return -EPERM; - } return 0; } @@ -721,7 +713,6 @@ static void lp8788_charger_remove(struct platform_device *pdev) flush_work(&pchg->charger_work); lp8788_irq_unregister(pdev, pchg); - lp8788_psy_unregister(pchg); } static struct platform_driver lp8788_charger_driver = { -- 2.53.0