From patchwork Wed Dec 28 01:40:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yang X-Patchwork-Id: 637539 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1366CC46467 for ; Wed, 28 Dec 2022 01:40:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229525AbiL1BkJ (ORCPT ); Tue, 27 Dec 2022 20:40:09 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229475AbiL1BkI (ORCPT ); Tue, 27 Dec 2022 20:40:08 -0500 Received: from mxhk.zte.com.cn (mxhk.zte.com.cn [63.216.63.40]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04A31DF94; Tue, 27 Dec 2022 17:40:08 -0800 (PST) Received: from mse-fl1.zte.com.cn (unknown [10.5.228.132]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mxhk.zte.com.cn (FangMail) with ESMTPS id 4NhZ2t53W1z8QrkZ; Wed, 28 Dec 2022 09:40:06 +0800 (CST) Received: from szxlzmapp06.zte.com.cn ([10.5.230.252]) by mse-fl1.zte.com.cn with SMTP id 2BS1e0df048934; Wed, 28 Dec 2022 09:40:00 +0800 (+08) (envelope-from yang.yang29@zte.com.cn) Received: from mapi (szxlzmapp01[null]) by mapi (Zmail) with MAPI id mid14; Wed, 28 Dec 2022 09:40:01 +0800 (CST) Date: Wed, 28 Dec 2022 09:40:01 +0800 (CST) X-Zmail-TransId: 2b0363ab9e71ffffffffbc84f49e X-Mailer: Zmail v1.0 Message-ID: <202212280940017919910@zte.com.cn> Mime-Version: 1.0 From: To: Cc: , , , , , , , , , , , Subject: =?utf-8?q?=5BPATCH_linux-next=5D_fbdev=3A_omap=3A_use_strscpy=28=29?= =?utf-8?q?_to_instead_of_strncpy=28=29?= X-MAIL: mse-fl1.zte.com.cn 2BS1e0df048934 X-Fangmail-Gw-Spam-Type: 0 X-FangMail-Miltered: at cgslv5.04-192.168.250.137.novalocal with ID 63AB9E76.000 by FangMail milter! X-FangMail-Envelope: 1672191606/4NhZ2t53W1z8QrkZ/63AB9E76.000/10.5.228.132/[10.5.228.132]/mse-fl1.zte.com.cn/ X-Fangmail-Anti-Spam-Filtered: true X-Fangmail-MID-QID: 63AB9E76.000/4NhZ2t53W1z8QrkZ Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org From: Xu Panda The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL-terminated strings. Signed-off-by: Xu Panda Signed-off-by: Yang Yang --- drivers/video/fbdev/omap/omapfb_main.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c index 17cda5765683..1f3df2055ff0 100644 --- a/drivers/video/fbdev/omap/omapfb_main.c +++ b/drivers/video/fbdev/omap/omapfb_main.c @@ -1447,7 +1447,7 @@ static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info) info->fbops = &omapfb_ops; info->flags = FBINFO_FLAG_DEFAULT; - strncpy(fix->id, MODULE_NAME, sizeof(fix->id)); + strscpy(fix->id, MODULE_NAME, sizeof(fix->id)); info->pseudo_palette = fbdev->pseudo_palette; @@ -1573,8 +1573,7 @@ static int omapfb_find_ctrl(struct omapfb_device *fbdev) fbdev->ctrl = NULL; - strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1); - name[sizeof(name) - 1] = '\0'; + strscpy(name, conf->lcd.ctrl_name, sizeof(name)); if (strcmp(name, "internal") == 0) { fbdev->ctrl = fbdev->int_ctrl;