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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 1BA0CC3B1A2 for ; Fri, 14 Feb 2020 16:07:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D33462467B for ; Fri, 14 Feb 2020 16:07:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581696445; bh=dvE44OfBTrD5yaVr32CYxZ9E+07kwMmWlVXEWMen15s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=UKvz8vj/c7CG9IYCSfZkPvY3OQaY36laAtHI9zeRkoBll3uUApJMWYH1WbDaKal1T IjOgbtjnFBLSimJFfEXAHF9NXpKwyxJ9ErXnQ59GTQrb+lux1QAfF3WoZDaOO9vd2v Fj1PLKuwpHEKYV3e0ykwdq+XwfbD3yO2zzOvEOd8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388353AbgBNQHY (ORCPT ); Fri, 14 Feb 2020 11:07:24 -0500 Received: from mail.kernel.org ([198.145.29.99]:58696 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390658AbgBNQHX (ORCPT ); Fri, 14 Feb 2020 11:07:23 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1E9DE24684; Fri, 14 Feb 2020 16:07:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581696443; bh=dvE44OfBTrD5yaVr32CYxZ9E+07kwMmWlVXEWMen15s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FVi2wnq5lGMJnLMHWmcHHeWd/MTMYYFehQHYuv2HkylExjU4NYHtu9d3TXfUabMW9 +QU+h0idUAtBw8/wEk/QjC5Hw0tUxbiUKZ9qRzSiylHeVCiL5OZJPtS69m/4PLg0fI /QaHTA8VsCTEvCB9g3iArjYC/bfNOgoDY9b9eSSU= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Dingchen Zhang , Leo Li , Harry Wentland , Sam Ravnborg , Alex Deucher , Sasha Levin , dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.4 258/459] drm: remove the newline for CRC source name. Date: Fri, 14 Feb 2020 10:58:28 -0500 Message-Id: <20200214160149.11681-258-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200214160149.11681-1-sashal@kernel.org> References: <20200214160149.11681-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dingchen Zhang [ Upstream commit 72a848f5c46bab4c921edc9cbffd1ab273b2be17 ] userspace may transfer a newline, and this terminating newline is replaced by a '\0' to avoid followup issues. 'len-1' is the index to replace the newline of CRC source name. v3: typo fix (Sam) v2: update patch subject, body and format. (Sam) Cc: Leo Li Cc: Harry Wentland Cc: Sam Ravnborg Signed-off-by: Dingchen Zhang Reviewed-by: Sam Ravnborg Signed-off-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20190610134751.14356-1-dingchen.zhang@amd.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/drm_debugfs_crc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_debugfs_crc.c b/drivers/gpu/drm/drm_debugfs_crc.c index be1b7ba92ffe1..6a626c82e264b 100644 --- a/drivers/gpu/drm/drm_debugfs_crc.c +++ b/drivers/gpu/drm/drm_debugfs_crc.c @@ -140,8 +140,8 @@ static ssize_t crc_control_write(struct file *file, const char __user *ubuf, if (IS_ERR(source)) return PTR_ERR(source); - if (source[len] == '\n') - source[len] = '\0'; + if (source[len - 1] == '\n') + source[len - 1] = '\0'; ret = crtc->funcs->verify_crc_source(crtc, source, &values_cnt); if (ret) -- 2.20.1