From patchwork Tue Oct 22 02:52:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hongling Zeng X-Patchwork-Id: 13845010 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3A7D084D34; Tue, 22 Oct 2024 02:58:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729565914; cv=none; b=TPFg6ygRRITCL3AivN+89KujB1oDUQL4ld8fkwdLY9L2iFRCW58pCL5YtAi6Kb2ebR2SzKx1dmESBF5MAn0znSI22PCfgTD5AkJkJvdnuQqECFlPGTw4E1ZkN4Kwn387eBMgyx8+Ojv4558Ju/EdIbEqTPyMmBc5g1mef8MnTuE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729565914; c=relaxed/simple; bh=jtBug8ONzyE+kgGa52pv+JdSpoMjZthiSSGGuBkAA1o=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=MI13+B0Xd1c1nomifstp4E+GLOzlV9xuWCZY9QUYk8nQUWCMdy/yJT+9OBUkM3dtOpD76/c43s33JtZT6rAzlE50K5jAfz9itzT+Rfnf/Ob9DYWsJ6yhwBHsvWEZKJuTBS6hZ52hdJ1jexGibfX9VQgSAaH6x9g/dYc7dUrwmFU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: c11631e6902011efa216b1d71e6e1362-20241022 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.38,REQID:0c6b36cb-c30b-4b21-ae72-df23d343b5a7,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:82c5f88,CLOUDID:b1f2c70976c0514a32db13af13aaec06,BulkI D:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,URL:0 ,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR: NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: c11631e6902011efa216b1d71e6e1362-20241022 Received: from node2.com.cn [(10.44.16.197)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA) with ESMTP id 50847325; Tue, 22 Oct 2024 10:53:02 +0800 Received: from node2.com.cn (localhost [127.0.0.1]) by node2.com.cn (NSMail) with SMTP id 49AF8B803C9E; Tue, 22 Oct 2024 10:53:02 +0800 (CST) X-ns-mid: postfix-6717138E-155168618 Received: from localhost.localdomain (unknown [172.25.120.36]) by node2.com.cn (NSMail) with ESMTPA id EDCBBB803C9E; Tue, 22 Oct 2024 02:53:00 +0000 (UTC) From: Hongling Zeng To: linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Cc: cascardo@holoscopio.com, hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, zhongling0719@126.com, Hongling Zeng Subject: [PATCH v2] platform/x86: classmate-laptop: Replace snprintf in show functions with sysfs_emit Date: Tue, 22 Oct 2024 10:52:59 +0800 Message-Id: <20241022025259.9255-1-zenghongling@kylinos.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 show() must not use snprintf() when formatting the value to be returned to user space. Signed-off-by: Hongling Zeng --- drivers/platform/x86/classmate-laptop.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/platform/x86/classmate-laptop.c b/drivers/platform/x86/classmate-laptop.c index cb6fce6..6b1b8e4 100644 --- a/drivers/platform/x86/classmate-laptop.c +++ b/drivers/platform/x86/classmate-laptop.c @@ -12,6 +12,7 @@ #include #include #include +#include struct cmpc_accel { int sensitivity; @@ -208,7 +209,7 @@ static ssize_t cmpc_accel_sensitivity_show_v4(struct device *dev, inputdev = dev_get_drvdata(&acpi->dev); accel = dev_get_drvdata(&inputdev->dev); - return sprintf(buf, "%d\n", accel->sensitivity); + return sysfs_emit(buf, "%d\n", accel->sensitivity); } static ssize_t cmpc_accel_sensitivity_store_v4(struct device *dev, @@ -257,7 +258,7 @@ static ssize_t cmpc_accel_g_select_show_v4(struct device *dev, inputdev = dev_get_drvdata(&acpi->dev); accel = dev_get_drvdata(&inputdev->dev); - return sprintf(buf, "%d\n", accel->g_select); + return sysfs_emit(buf, "%d\n", accel->g_select); } static ssize_t cmpc_accel_g_select_store_v4(struct device *dev, @@ -550,7 +551,7 @@ static ssize_t cmpc_accel_sensitivity_show(struct device *dev, inputdev = dev_get_drvdata(&acpi->dev); accel = dev_get_drvdata(&inputdev->dev); - return sprintf(buf, "%d\n", accel->sensitivity); + return sysfs_emit(buf, "%d\n", accel->sensitivity); } static ssize_t cmpc_accel_sensitivity_store(struct device *dev,