From patchwork Tue Aug 13 12:18:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yo-Jung Lin <0xff07@gmail.com> X-Patchwork-Id: 13761936 Received: from mail-pj1-f48.google.com (mail-pj1-f48.google.com [209.85.216.48]) (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 538D51CF9A; Tue, 13 Aug 2024 12:20:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723551637; cv=none; b=prXJRRodnRDnVydT5v8xTrwqFtabL+/Y7Ys4cZrpLDAUQte/Fr78zcafa8zlJmaYO/hM4GDXC/XEesxYHqlCquz4z1BJ9tRopJNTEZLJexp4uEas/8+Psgb9nK9qYg1uKrNv+3JJqDZHBno8iaN4mHVy8PJ47+Ah6T3vzViMgvI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723551637; c=relaxed/simple; bh=chAb2GOyV/hBwqq1AGYRaBy1jbqHrZJBU7pvL4YwHDc=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=Y+jqoFcr1K7+fD96DYl+WzPIvUiRujtJjwZ3mDgHP6Ral8/2XDC9b3emC4dWEgaZMkuBMyjsy2qajk5MO4VA8vZt3jTGn1L3LvJerUj+Id7g4Jdp98ZQC+DOQqv++v7r82n65PbXXRnm2IaJm4PzUMGpW67yM3EoX8YDzagYmDI= 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=KuXS0sHj; arc=none smtp.client-ip=209.85.216.48 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="KuXS0sHj" Received: by mail-pj1-f48.google.com with SMTP id 98e67ed59e1d1-2cb5789297eso3588521a91.3; Tue, 13 Aug 2024 05:20:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1723551635; x=1724156435; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=Z3mWR2mtNanCFR3pbd+apr4voFLl2lzERm6XILSMuMA=; b=KuXS0sHjU7E/ZYLCTH7sGFln4r6nUxZ8v9ep164DRaatKQIFC2Zt4v6uHMdQXxlV4b g86LYb563BSDYAr43eogjSLjGwpZIKKRgzldblTVtjZXxEXtoCxTeTPCvL+33S/piLRh rwIhZa+JjuTDIqTItnwGM+1h+JZZOSAqE/ogiIA+g2x9eVqkz335RTsgDl90x5CMa1Bb MuWqMRLiwJo6xustLuteYVP7XrhX+fy4zuU7adZx1sOJmyxmUf2495WHRVqwQplJUt2q kGd7HMlID+pie5wM9uGypMZOqs4sMHIZTKixekPa5jvCbRPovFjTx6vHbY9DVyJ52+WG VYXw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723551635; x=1724156435; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Z3mWR2mtNanCFR3pbd+apr4voFLl2lzERm6XILSMuMA=; b=GI/pC0UFDvByTnUO7VC5LMU66wuVcl5Qv3bcC61EuRann0FMmm1Fiq3vv5boI102hG RJEaygzsD472DvmZ2vCaEyMPZ4mDbU+K69hvf/9ZKjAtluthStI9VualDKXfcLSdgIDd PSlBF8sVY8v3BJG2zI3Wf7lIJY8w4+Oi9qQGNOIwdtaV9t3JwiY6kvvxJosw6cL0g6y5 U8e5Lrlcm0hT2GT+f5odaHFXzmF2IhD36fz56LuSeWuivXGYj0YXMLUdbxiLfefu9VT/ iAoYRlSuY0oXlljmBuw/GYDceVHKNPGhfjuiF/+33XUPgPkyu2aHcV2XAl8aDr5BS2fv 4oEg== X-Forwarded-Encrypted: i=1; AJvYcCXwXfxoetyCvK137GHpYsuWq5AXfTgIQEPdk20WdRvLZs/Ha3IPxrs45zLWcabQgvx+SbNqvjxyu5FF3UgNuIJZB06Lo1unUkXmovCmlk3zL7aNe+Sx0aFtFXlQ6ddkRGwIsAJV1/jeGjKRVEhc X-Gm-Message-State: AOJu0Yw1EymyKQzG5iZPcLfqPPrxXbbW2KCeMuRg0WlfmH715UvObUJM HMV65mc12KRNX8t3WJQCksInhmoQKEqp9WoVDB8QDrCcNhwJj/t0 X-Google-Smtp-Source: AGHT+IE1wpvYvO+X8aOgD1ucXI5Hpo8sCpkifzovrkkhUkzJyZM0MyY3uf4Jalzh0qzJR2XxEwT8ww== X-Received: by 2002:a17:90a:7448:b0:2d1:b49d:7f2 with SMTP id 98e67ed59e1d1-2d392548219mr3858002a91.22.1723551635481; Tue, 13 Aug 2024 05:20:35 -0700 (PDT) Received: from 0x7f800001.hitronhub.home ([2407:4d00:3c04:81a0:c062:fc81:d816:8b73]) by smtp.googlemail.com with ESMTPSA id 98e67ed59e1d1-2d1fcf06589sm7092679a91.25.2024.08.13.05.20.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Aug 2024 05:20:34 -0700 (PDT) From: "Yo-Jung (Leo) Lin" <0xff07@gmail.com> To: Cc: linux-kernel-mentees@lists.linuxfoundation.org, ricardo@marliere.net, skhan@linuxfoundation.org, 0xff07@gmail.com, Marcel Holtmann , Luiz Augusto von Dentz , linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] Bluetooth: vhci: manage mutex with cleanup helpers Date: Tue, 13 Aug 2024 20:18:28 +0800 Message-Id: <20240813121829.6693-1-0xff07@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Use macros in liunx/cleanup.h for automatic resource cleanup. Signed-off-by: Yo-Jung (Leo) Lin <0xff07@gmail.com> --- drivers/bluetooth/hci_vhci.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c index c4046f8f1985..70f0c28372ec 100644 --- a/drivers/bluetooth/hci_vhci.c +++ b/drivers/bluetooth/hci_vhci.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -468,9 +469,9 @@ static int vhci_create_device(struct vhci_data *data, __u8 opcode) { int err; - mutex_lock(&data->open_mutex); - err = __vhci_create_device(data, opcode); - mutex_unlock(&data->open_mutex); + scoped_guard(mutex, &data->open_mutex) { + err = __vhci_create_device(data, opcode); + } return err; }