From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dy1-f174.google.com (mail-dy1-f174.google.com [74.125.82.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A45D9423A82 for ; Thu, 7 May 2026 18:05:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778177126; cv=none; b=OPWcKNYMZcv04GNHlTDPEjnwwzgoIwxGDZn8JNkoFB4WzKR+Ajr4YNSGk4iMSnOz7iUTtlZVw/XH3Gs6HHE3zQZJFEpvnvV8RMr7ilfLz8sUz+UpMkk1xiHtgc1YrbRbvr7XRREbJ41fRpqMouTMAq1MiDpJYInwGRjV46PabxA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778177126; c=relaxed/simple; bh=6uvm7kxcoZxl4SJop0VuYLP778pizJEeCY5iHUnRujE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=oCRV4Ir0aOOYeQlZ5uvgxqPUR0VTS84+LYju5es84OwQOy+DgceIlKP3g5PapRK/RnIBT7NF7OMQNUk6LrxkaUHZI5LhMLg4XWrAc17MyWnuRbIw8LyHsxzln0qm1LFEeiVBzOpOotopScF/K4ta3hr3g11EIJPqBNJ82f3qj8I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=ZAbJzQBV; arc=none smtp.client-ip=74.125.82.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ZAbJzQBV" Received: by mail-dy1-f174.google.com with SMTP id 5a478bee46e88-2f0d3e07e30so2975163eec.0 for ; Thu, 07 May 2026 11:05:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1778177124; x=1778781924; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=4ki2zpxXcCZiQ654Cm5JOUD1c7/Sq7YjZSIjBtyxJhk=; b=ZAbJzQBVI0cLGmwvL10G6q18zhdo8D4tLW2JaIVPv62Q0sd3lkm5WaEGSRgCqPakDD gMJ7XxQk22EExn/wquItvA7iItdR4zvtXI6R1fden0+wSKwCSsTfsvSUYCOmqHVNGE5u Zqnq5r5jSol/aCE95DJsdXMsgm/FZv1VY6csxjT5ZmDKYJGYv5izFz9x+nXurrENXnXl TokzK3kG0XARajmZNTxeJXtQ/6IdvXfoMPpD5rq3NKf7HFHCwSPU9R1kHW9vs+Ii5qQP g7jM2irEwrB7KDPm+/yL0mNn2c14J12ssaSc5IVJptacVB+dX3VHLII7YxyVI2B8DTaz V9qw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778177124; x=1778781924; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=4ki2zpxXcCZiQ654Cm5JOUD1c7/Sq7YjZSIjBtyxJhk=; b=iAdQf0n0SB8FBUF/wKxp01blmF1W19k/6ktOaFOcDQDSZSMHeYj+bLfsvgEjAnzkOg W101JE5BLtRk5WAeUm/ZBD9z+tn5EaDbvwAMK7HYIkjc4cMzt0Dj5/9iRElTzCMtZzc2 yXPqq8GS40vOEqcavJFiYyTCDKna+pwZZF2TQk3+d3a7TzwwM0sP54UvpHR76dK6n/t0 N9bdio8JoqqV7QGlTOCI4fGZlcCG/AF88NOjtixCRNcWXz6GttovN6Xp1GBxMdjW/DvW 5vfajIMFg/u3XvabcuB4Lmlnw2IiVwSD8Hyh7xkbC2dVmXe78DAH5/X2InPwdeWcJhlb pjdg== X-Forwarded-Encrypted: i=1; AFNElJ8SmHCTWx7/J1icJFg9wVKU8k41cekguol0W+nQLGe8kb9ZuSA16FD06Rm80p5Rl8SAKEAJuM9tilbt98m559wxPzE3@vger.kernel.org X-Gm-Message-State: AOJu0Yz+hi3a9FnLX180YrhycYC1zShrtClVEoikDo0Gx06SFv9ZArQx NmRtxz03b9JIWJnKYxJBiDaD0HoWC3rCchPIiwFYBplQ2N8VSVN8b0EG X-Gm-Gg: Acq92OGS2Js8tZtpmE+WZVa4pc1hOOCe+RyPPScT+L3TWj2oX4u54eRj0G8tEX9wOMd zmPjF+kVfoyNouve5DhK/odPu1vm914PlbYH40f82i+CZx+RJdmoYwTsnTcDbkVu0fXhyVhVVeV v7N7JhINkW8M3gFqy3Mzqb5SfggGcDRWwg9/yokTZBpYbC9bPyAscCfmuY6OQxW0Tf5YYiHZVsl ODlCZTe9ypOPcQN7WUjCFjQdl9rvPAYJbOntlg4/EtJMGAhQt6WXH3h5n+iJZzoEGGUdBUS9RVi QLC8GRlQYWtssZyNXC1uUqTSHs00wHX1Rud3JxBdDV4YoIWISEabsL55iWM0vzCgzjq7bq21j3H iUrDez/L6dGhXShijAluD8exUWzkjq5xfxMXVn+TFd4VlCZO/zs+rD5+sz3T6nGJGyNZw9aYyY0 vj54f6/MGXVvbPnmO18pUl/SPdfxia4+FRCf8L4n1BN3hCcBoSART547A5R/McohphoMTQc9tWi jjDKVr/BmzcAEE= X-Received: by 2002:a05:7300:72d1:b0:2f1:6252:f8ef with SMTP id 5a478bee46e88-2f548a9b30cmr5316897eec.1.1778177123686; Thu, 07 May 2026 11:05:23 -0700 (PDT) Received: from lappy (108-228-232-20.lightspeed.sndgca.sbcglobal.net. [108.228.232.20]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2f82bd73a64sm44332eec.12.2026.05.07.11.05.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 May 2026 11:05:23 -0700 (PDT) From: "Derek J. Clark" To: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , Hans de Goede Cc: Mark Pearson , Armin Wolf , Jonathan Corbet , Rong Zhang , Kurt Borja , "Derek J . Clark" , "Pierre-Loup A . Griffais" , =?UTF-8?q?N=C3=ADcolas=20F=20=2E=20R=20=2E=20A=20=2E=20Prado?= , marshall@shzj.cc, hyacinth@shzj.cc, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH v11 03/15] platform/x86: lenovo-wmi-other: Balance component bind and unbind Date: Thu, 7 May 2026 18:04:55 +0000 Message-ID: <20260507180507.912966-4-derekjohn.clark@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260507180507.912966-1-derekjohn.clark@gmail.com> References: <20260507180507.912966-1-derekjohn.clark@gmail.com> Precedence: bulk X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Rong Zhang When lwmi_om_master_bind() fails, the master device's components are left bound, with the aggregate device destroyed due to the failure (found by sashiko.dev [1]). Balance calls to component_bind_all() and component_unbind_all() when an error is propagated to the component framework. No functional change intended. Reviewed-by: Mark Pearson Reviewed-by: Ilpo Järvinen Fixes: edc4b183b794 ("platform/x86: Add Lenovo Other Mode WMI Driver") Cc: stable@vger.kernel.org Link: https://sashiko.dev/#/patchset/20260331181208.421552-1-derekjohn.clark%40gmail.com [1] Signed-off-by: Rong Zhang Signed-off-by: Derek J. Clark --- drivers/platform/x86/lenovo/wmi-other.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/platform/x86/lenovo/wmi-other.c b/drivers/platform/x86/lenovo/wmi-other.c index be3309d74e03..a6be3463341c 100644 --- a/drivers/platform/x86/lenovo/wmi-other.c +++ b/drivers/platform/x86/lenovo/wmi-other.c @@ -1068,8 +1068,11 @@ static int lwmi_om_master_bind(struct device *dev) priv->cd00_list = binder.cd00_list; priv->cd01_list = binder.cd01_list; - if (!priv->cd00_list || !priv->cd01_list) + if (!priv->cd00_list || !priv->cd01_list) { + component_unbind_all(dev, NULL); + return -ENODEV; + } lwmi_om_fan_info_collect_cd00(priv); -- 2.53.0