From patchwork Wed Dec 7 07:31:08 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: ye.xingchen@zte.com.cn X-Patchwork-Id: 13066702 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 49B92C352A1 for ; Wed, 7 Dec 2022 07:32:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229452AbiLGHbe (ORCPT ); Wed, 7 Dec 2022 02:31:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57314 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229825AbiLGHbQ (ORCPT ); Wed, 7 Dec 2022 02:31:16 -0500 Received: from mxhk.zte.com.cn (mxhk.zte.com.cn [63.216.63.40]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0B2C927CC5; Tue, 6 Dec 2022 23:31:16 -0800 (PST) Received: from mse-fl2.zte.com.cn (unknown [10.5.228.133]) (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 4NRpqk5KJPz8R041; Wed, 7 Dec 2022 15:31:14 +0800 (CST) Received: from xaxapp03.zte.com.cn ([10.88.40.52]) by mse-fl2.zte.com.cn with SMTP id 2B77V6Lb049894; Wed, 7 Dec 2022 15:31:06 +0800 (+08) (envelope-from ye.xingchen@zte.com.cn) Received: from mapi (xaxapp01[null]) by mapi (Zmail) with MAPI id mid31; Wed, 7 Dec 2022 15:31:08 +0800 (CST) Date: Wed, 7 Dec 2022 15:31:08 +0800 (CST) X-Zmail-TransId: 2af96390413c14e6de4c X-Mailer: Zmail v1.0 Message-ID: <202212071531083612274@zte.com.cn> Mime-Version: 1.0 From: To: Cc: , , , , Subject: =?utf-8?q?=5BPATCH=5D_iio=3A_ad7768-1=3A_Convert_to_use_sysfs=5Femi?= =?utf-8?q?t=5Fat=28=29_API?= X-MAIL: mse-fl2.zte.com.cn 2B77V6Lb049894 X-Fangmail-Gw-Spam-Type: 0 X-FangMail-Miltered: at cgslv5.04-192.168.250.137.novalocal with ID 63904142.001 by FangMail milter! X-FangMail-Envelope: 1670398274/4NRpqk5KJPz8R041/63904142.001/10.5.228.133/[10.5.228.133]/mse-fl2.zte.com.cn/ X-Fangmail-Anti-Spam-Filtered: true X-Fangmail-MID-QID: 63904142.001/4NRpqk5KJPz8R041 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: ye xingchen Follow the advice of the Documentation/filesystems/sysfs.rst and show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: ye xingchen --- drivers/iio/adc/ad7768-1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ad7768-1.c b/drivers/iio/adc/ad7768-1.c index 70a25949142c..eea796a3f83c 100644 --- a/drivers/iio/adc/ad7768-1.c +++ b/drivers/iio/adc/ad7768-1.c @@ -346,7 +346,7 @@ static ssize_t ad7768_sampling_freq_avail(struct device *dev, for (i = 0; i < ARRAY_SIZE(ad7768_clk_config); i++) { freq = DIV_ROUND_CLOSEST(st->mclk_freq, ad7768_clk_config[i].clk_div); - len += scnprintf(buf + len, PAGE_SIZE - len, "%d ", freq); + len += sysfs_emit_at(buf, len, "%d ", freq); } buf[len - 1] = '\n';