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Wysocki" , Danilo Krummrich , Jonathan Corbet , Shuah Khan , Tejun Heo , Lai Jiangshan , Tobias Schrammm , Sebastian Reichel , Andy Shevchenko , Dan Carpenter , Krzysztof Kozlowski , Lee Jones , Dzmitry Sankouski , Matthias Brugger , AngeloGioacchino Del Regno , Benson Leung , Tzung-Bi Shih Cc: driver-core@lists.linux.dev, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Sebastian Reichel , linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, chrome-platform@lists.linux.dev, Krzysztof Kozlowski X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=3021; i=krzysztof.kozlowski@oss.qualcomm.com; h=from:subject:message-id; bh=G2Qaq1IYTDtA8nYq8hb67ozAR45iYXNAROMWtKf03Uw=; b=owEBbQKS/ZANAwAKAcE3ZuaGi4PXAcsmYgBpnAFqVbGd+Oyd+isBnLp3Irn3IzZIFzgrOBn+8 5TEkaEct86JAjMEAAEKAB0WIQTd0mIoPREbIztuuKjBN2bmhouD1wUCaZwBagAKCRDBN2bmhouD 1/PbEACD32lwshZ2ZGTfWR2j4TEzEqcr5UkWKivQj4l2BDJ3b0cx3v9UXC+uQpxEwQRsNqj0BvG I1fbqNt2AyWmkGgU5CQ/mctWF9CLx35r8IK/9NdFjOqcFxht4uwjb6upeBsp+J9Pv4HEfYA0wAN KTA7ic+gakOj5ORF0AX0XB+z9UwqeB8IbQrIH7214fJQfuMgYgOooGihxSqfiOsUPuOZ9ls5/dM epmwdKvIbeyOiwRprJ77lkVrp+OMFQXa7Z3PUu0SZkkyFzbd7PZxw1z192ZbcfxAarusRPDYPy3 wg9eYXwcNtW8bxgrkKEeFuuHIQYLM/XjrlvnAGGRttd3REFDczgFmq2NJxW17OOVDZeYCMfKj4U x50tsh+z6Y0ziwp0yrkLamVu++cpOHEeoets78gt/cg4eSkEFdA7Bm6o1PBYHVqPrYUMwYO3uzw jTyOPwQM3T2UT6UB95Cz2t5+dDzKC/lSPReC0bsI+qBURe6pUl4SOcPr44WISrvlDFn+uxccMAP cZ9tGiPuZpEGR4H7DnWR1quOQzOJwWZEQ/EbBXRzQS0zF1KAcc0gxH1sTluqtgGKh/1LOGDmNJk ILB2rMYlea2r74+WwfmYhcO0zntsIz41R1A3mBVMXjAxQHSN1RCq0uN/1cASc2WbfdgyvfjfE/z 84W99rJwWh793pg== X-Developer-Key: i=krzysztof.kozlowski@oss.qualcomm.com; a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B X-Authority-Analysis: v=2.4 cv=KJVXzVFo c=1 sm=1 tr=0 ts=699c017b cx=c_pps a=50t2pK5VMbmlHzFWWp8p/g==:117 a=6nO30s3o7FuWeffXwhKHTA==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=KKAkSRfTAAAA:8 a=PkD0MmKtpR7JdVUpc-MA:9 a=QEXdDO2ut3YA:10 a=IoWCM6iH3mJn3m4BftBB:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjIzMDA2NCBTYWx0ZWRfX/oghm4Xt/ZmS on2k873bU4cSuTlxkebwYTN8wSgsTeHyCsKWr0js4037xNNhwZHcX7n0efkx5+HJo3bYNkm3W7/ h+7Lb1FaEm/oek7EYvyLGxcp4mluxve9cj0uQNubfHJBRkRx5Us3OUZCk1E2Bes4uDoC+lwj7Yo gkjZDii6zm2YM5GZ5kwyJe2YzdSflBUpY2K6VMRKsj6zaSEwWWEbC1uhPKrLVNnR0CboRfTP/ke buBGGVIBNPxuB3jJZ30TXVwfchiZZoDqSyiC1Bl6agUhtLjQJVB9mvw4gN6SbrHRsnLh/sB/2dx JNddiqVVK7vB7oJkhgnesmcNVv7wcFit3E75oZIc9nBAvaBsXPiv5W21tV5BO985h6OS88rZbha 0gDQpX1UA6ul6oGjWQYAs9JhGqD/JbQYEoyCLQbCIpM36JSGJMNSkp1sPvK47hmpIqlZpivEqym uVBbApFc+4VqsGAeGgw== X-Proofpoint-ORIG-GUID: cy6g0VEJYtHLeN7Q-2cshFXKl4AYcS7k X-Proofpoint-GUID: cy6g0VEJYtHLeN7Q-2cshFXKl4AYcS7k X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-23_01,2026-02-20_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 phishscore=0 bulkscore=0 lowpriorityscore=0 priorityscore=1501 clxscore=1015 spamscore=0 malwarescore=0 adultscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2602230064 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260222_232756_497917_E843B7AD X-CRM114-Status: GOOD ( 18.15 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Simplify the driver by using devm interfaces, which allow to drop probe() error paths and the remove() callback. Signed-off-by: Krzysztof Kozlowski --- drivers/power/supply/ipaq_micro_battery.c | 50 ++++++++++--------------------- 1 file changed, 16 insertions(+), 34 deletions(-) diff --git a/drivers/power/supply/ipaq_micro_battery.c b/drivers/power/supply/ipaq_micro_battery.c index ff8573a5ca6d..5e3fe3852d0e 100644 --- a/drivers/power/supply/ipaq_micro_battery.c +++ b/drivers/power/supply/ipaq_micro_battery.c @@ -7,6 +7,7 @@ * Author : Linus Walleij */ +#include #include #include #include @@ -232,49 +233,31 @@ static int micro_batt_probe(struct platform_device *pdev) return -ENOMEM; mb->micro = dev_get_drvdata(pdev->dev.parent); - mb->wq = alloc_workqueue("ipaq-battery-wq", - WQ_MEM_RECLAIM | WQ_PERCPU, 0); + mb->wq = devm_alloc_workqueue(&pdev->dev, "ipaq-battery-wq", + WQ_MEM_RECLAIM | WQ_PERCPU, 0); if (!mb->wq) return -ENOMEM; - INIT_DELAYED_WORK(&mb->update, micro_battery_work); + ret = devm_delayed_work_autocancel(&pdev->dev, &mb->update, micro_battery_work); + if (ret) + return ret; + platform_set_drvdata(pdev, mb); queue_delayed_work(mb->wq, &mb->update, 1); - micro_batt_power = power_supply_register(&pdev->dev, - µ_batt_power_desc, NULL); - if (IS_ERR(micro_batt_power)) { - ret = PTR_ERR(micro_batt_power); - goto batt_err; - } + micro_batt_power = devm_power_supply_register(&pdev->dev, + µ_batt_power_desc, + NULL); + if (IS_ERR(micro_batt_power)) + return PTR_ERR(micro_batt_power); - micro_ac_power = power_supply_register(&pdev->dev, - µ_ac_power_desc, NULL); - if (IS_ERR(micro_ac_power)) { - ret = PTR_ERR(micro_ac_power); - goto ac_err; - } + micro_ac_power = devm_power_supply_register(&pdev->dev, + µ_ac_power_desc, NULL); + if (IS_ERR(micro_ac_power)) + return PTR_ERR(micro_ac_power); dev_info(&pdev->dev, "iPAQ micro battery driver\n"); return 0; - -ac_err: - power_supply_unregister(micro_batt_power); -batt_err: - cancel_delayed_work_sync(&mb->update); - destroy_workqueue(mb->wq); - return ret; -} - -static void micro_batt_remove(struct platform_device *pdev) - -{ - struct micro_battery *mb = platform_get_drvdata(pdev); - - power_supply_unregister(micro_ac_power); - power_supply_unregister(micro_batt_power); - cancel_delayed_work_sync(&mb->update); - destroy_workqueue(mb->wq); } static int __maybe_unused micro_batt_suspend(struct device *dev) @@ -303,7 +286,6 @@ static struct platform_driver micro_batt_device_driver = { .pm = µ_batt_dev_pm_ops, }, .probe = micro_batt_probe, - .remove = micro_batt_remove, }; module_platform_driver(micro_batt_device_driver); -- 2.51.0