From nobody Mon Feb 9 17:07:24 2026 Received: from pv50p00im-ztdg10021201.me.com (pv50p00im-ztdg10021201.me.com [17.58.6.45]) (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 C25D221ABA6 for ; Fri, 7 Mar 2025 12:50:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=17.58.6.45 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741351826; cv=none; b=Bvz/d8G0WyZKwBUoNnNU8P7A/DrZZhvCsQ9n3139cw1EmbqOukSd1COflpjfmiB3k2lLQtPfNZgUARvsfG1jCmxCzz0lLG6yT4llpwlwTXIT0VEYWJDa0CPOEsMmds2FF4DWeR9AeSlSi1TR4aBETptDWZifahaJt3KwZ9S4o5g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741351826; c=relaxed/simple; bh=ki2B8HmLzHt7SFGIKrwsoRPEZdjP8OBV4OmH0Gi+Xb0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=h7ubhY4IA5Gle+MVKRoxIiyEKxTWfRM6gPOl0Vjvv6mdPFArpkJtp8AUE8cj6GP8Rxj7RhMxShGkVYZ4RgOgw+OOySmRBFXqueyTmZqLIV83GYMttSZAALRQcoUdLJkxu19lOtWfJpbKQ/uRi5FkfJHI6vSExE6GqoMKFE/78TM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=icloud.com; spf=pass smtp.mailfrom=icloud.com; dkim=pass (2048-bit key) header.d=icloud.com header.i=@icloud.com header.b=tDg8pN7S; arc=none smtp.client-ip=17.58.6.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=icloud.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=icloud.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=icloud.com header.i=@icloud.com header.b="tDg8pN7S" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=icloud.com; s=1a1hai; bh=gUs8XrpApCfd2Rppq+ZXU8/T5MPfQ+c1pN1GeAjxBjI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:x-icloud-hme; b=tDg8pN7ShpHmm2rP4jh3CuAZBPYJB8YyQ3pKikjkcY8gekrCEvM05MGHprYsYHET3 7iGyPcoL4/iAcNQlyg2fJSKi0E/mNo9SXC4ZWn6g5bzcWupfI+beAyAZ6OMc7mh97z WTqj4Or3Lqh6KaKpxUQSTM+CxTtCAX0O3UV/z7V3gEOWRqWyOrzesziynfFeKmew0I MOlM7arCk97dyuo7tmxuLAXd0nlemvpz7X1IMZ81100kjs95EVSTRVQpvxA/wQ4ScA saMBAHSGSx/5nUfy0eQvt+riRMKgmgOh6yiEkX95qXaGzovyxBp7RljYTfNWl6pQGJ FybbisIEXbj/w== Received: from [192.168.1.26] (pv50p00im-dlb-asmtp-mailmevip.me.com [17.56.9.10]) by pv50p00im-ztdg10021201.me.com (Postfix) with ESMTPSA id 6B8A03118BB4; Fri, 7 Mar 2025 12:50:21 +0000 (UTC) From: Zijun Hu Date: Fri, 07 Mar 2025 20:47:16 +0800 Subject: [PATCH] driver core: faux: Check device binding state by dedicated API device_is_bound() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250307-fix_faux-v1-1-91459764575e@quicinc.com> X-B4-Tracking: v=1; b=H4sIANPqymcC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDI1MDYwNz3bTMivi0xNIKXQMTI4M0wxSL1OREMyWg8oKiVKAc2Kjo2NpaADa lKLFaAAAA X-Change-ID: 20250307-fix_faux-0420f1d8eca6 To: Greg Kroah-Hartman , "Rafael J. Wysocki" , Danilo Krummrich Cc: Zijun Hu , linux-kernel@vger.kernel.org, Zijun Hu X-Mailer: b4 0.14.2 X-Proofpoint-GUID: K61dMBVy0T_lXYoXmkWjQnXd33LrcncF X-Proofpoint-ORIG-GUID: K61dMBVy0T_lXYoXmkWjQnXd33LrcncF X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1093,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-03-07_05,2025-03-06_04,2024-11-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 bulkscore=0 spamscore=0 suspectscore=0 adultscore=0 mlxscore=0 clxscore=1015 mlxlogscore=682 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2308100000 definitions=main-2503070094 X-Apple-Remote-Links: v=1;h=KCk=;charset=UTF-8 From: Zijun Hu Use dedicated API device_is_bound() instead of 'dev->driver' to check device binding state in faux_device_create_with_groups(). Signed-off-by: Zijun Hu --- drivers/base/faux.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/base/faux.c b/drivers/base/faux.c index 407c1d1aad50b7969a6dab9d2027d8beab66a754..76fe494a128254aaaf1339386ab= 37817a732781f 100644 --- a/drivers/base/faux.c +++ b/drivers/base/faux.c @@ -154,7 +154,8 @@ struct faux_device *faux_device_create_with_groups(cons= t char *name, * if not, let's fail the creation as trying to guess if probe was * successful is almost impossible to determine by the caller. */ - if (!dev->driver) { + /* Do not need to device_lock(dev) due to no race here */ + if (!device_is_bound(dev)) { dev_err(dev, "probe did not succeed, tearing down the device\n"); faux_device_destroy(faux_dev); faux_dev =3D NULL; --- base-commit: 21b0dc55bed6d9b5dd5d1ad22b75d9d1c7426bbc change-id: 20250307-fix_faux-0420f1d8eca6 Best regards, --=20 Zijun Hu