From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D12DBC5CFFE for ; Mon, 10 Dec 2018 21:04:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9E1192082F for ; Mon, 10 Dec 2018 21:04:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="OCU2qK5I" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9E1192082F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=n7lQSNoTm0nPwir9fS7Zj6x4HbDffUdwEY0o5l5SYNw=; b=OCU2qK5I53HSad6Gt0j7buT51U K8rTB0dFR93dRbUO/3OUl30dxK75fa2ivZhNjNkPuxuaU1RbPlJbYxn8n4jw9k6qE3vT4yZqx+U9Z IMjfVr0vbwKdP9KiQMceK3e7JtXBOiCkgn+oPlTZhZO90jseCNTKkOxbwZmCgJfFUDxhOqv0tadhw Pv/PqIJg9WVuFBoyH3yXXbST+4fKek0IrNV1wR5mGp6a5sT1O1Ey7Qhzn/0s7hoOj5m3bdCQQoNI1 amT2kd+IKdKTltaWSC8hDt5CyqKVu4epLNtjGyzhr+cKCTDxj0riSWRugyCg8/NPuhkR7r/WWwCCg +GkXECJA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gWSiq-00088u-5C; Mon, 10 Dec 2018 21:04:12 +0000 Received: from sauhun.de ([88.99.104.3] helo=pokefinder.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gWSi9-00076k-56 for linux-arm-kernel@lists.infradead.org; Mon, 10 Dec 2018 21:03:31 +0000 Received: from localhost (p54B335CF.dip0.t-ipconnect.de [84.179.53.207]) by pokefinder.org (Postfix) with ESMTPSA id 783184C3C66; Mon, 10 Dec 2018 22:03:14 +0100 (CET) From: Wolfram Sang To: linux-i2c@vger.kernel.org Subject: [RFC/RFT 02/10] i2c: reject new transfers when adapters are suspended Date: Mon, 10 Dec 2018 22:03:00 +0100 Message-Id: <20181210210310.12677-3-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20181210210310.12677-1-wsa+renesas@sang-engineering.com> References: <20181210210310.12677-1-wsa+renesas@sang-engineering.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181210_130329_339306_C05839E6 X-CRM114-Status: UNSURE ( 7.67 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Wolfram Sang , linux-pm@vger.kernel.org, Wolfram Sang , linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Hans de Goede , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Using the new 'is_suspended' flag, we now reject new transfers if the adapter is already marked suspended. Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-core-base.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index 9f89e258c8ff..5b2078a902f8 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -1866,6 +1866,8 @@ int __i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) if (WARN_ON(!msgs || num < 1)) return -EINVAL; + if (WARN_ON(adap->is_suspended)) + return -ESHUTDOWN; if (adap->quirks && i2c_check_for_quirks(adap, msgs, num)) return -EOPNOTSUPP; -- 2.11.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel