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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 CE952C07E9B for ; Mon, 19 Jul 2021 12:25:52 +0000 (UTC) Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5DDC66115B for ; Mon, 19 Jul 2021 12:25:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5DDC66115B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nic.cz Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 0706C82D8A; Mon, 19 Jul 2021 14:23:13 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=nic.cz Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; secure) header.d=nic.cz header.i=@nic.cz header.b="p1RHiaxO"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id B43F882C87; Mon, 19 Jul 2021 14:22:21 +0200 (CEST) Received: from mail.nic.cz (lists.nic.cz [IPv6:2001:1488:800:400::400]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id B580B82C56 for ; Mon, 19 Jul 2021 14:22:11 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=nic.cz Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=marek.behun@nic.cz Received: from dellmb.labs.office.nic.cz (unknown [IPv6:2001:1488:fffe:6:8747:7254:5571:3010]) by mail.nic.cz (Postfix) with ESMTPSA id 947471405C9; Mon, 19 Jul 2021 14:22:10 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=nic.cz; s=default; t=1626697331; bh=vs6GvBH2KcDRfabGa1fKLAnzYmF5YST1VppBSFGmwwk=; h=From:To:Date; b=p1RHiaxOIHi5INP+S5QxTHtU8SC1+4GfGX7xg6SZrsex8HDdyK0IrmJlrzkYwseEw htgyDORJdToIZ9W/EAIkFNuxzGp1H3TuFEWKc83h9A9LAhWGbFMT/z2HDVIdaToYo9 YPk19hGYTA/LbRzk8yE/aT6FJ7UAzyc2MDavhE1s= From: =?UTF-8?q?Marek=20Beh=C3=BAn?= To: u-boot@lists.denx.de, Chris Packham , Stefan Roese , Baruch Siach , Dirk Eibach , Chris Packham Cc: Dennis Gilmore , Mario Six , Jon Nettleton , =?UTF-8?q?Pali=20Roh=C3=A1r?= , =?UTF-8?q?Marek=20Beh=C3=BAn?= Subject: [PATCH u-boot-mvebu v2 24/41] tools: kwboot: Fix restoring terminal Date: Mon, 19 Jul 2021 14:20:47 +0200 Message-Id: <20210719122104.29698-25-marek.behun@nic.cz> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210719122104.29698-1-marek.behun@nic.cz> References: <20210719122104.29698-1-marek.behun@nic.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.2 at phobos.denx.de X-Virus-Status: Clean From: Pali Rohár Call tcsetattr() only if the file descriptor is valid. It may be invalidated by previous lines (if it is not a tty descriptor). Signed-off-by: Pali Rohár Reviewed-by: Marek Behún Reviewed-by: Stefan Roese Reviewed-by: Chris Packham Tested-by: Chris Packham --- tools/kwboot.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/kwboot.c b/tools/kwboot.c index 1ba5ded5d3..7fa742d84c 100644 --- a/tools/kwboot.c +++ b/tools/kwboot.c @@ -558,7 +558,8 @@ kwboot_terminal(int tty) } } while (quit[s] != 0); - tcsetattr(in, TCSANOW, &otio); + if (in >= 0) + tcsetattr(in, TCSANOW, &otio); out: return rc; } -- 2.31.1