From patchwork Fri Jun 7 05:59:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13689302 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 420701552E6; Fri, 7 Jun 2024 05:59:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717739990; cv=none; b=tMd6N6omp9bY6O009OcJo3eYbqpuGM0TNGtjdbHDIkNiXw/ECC1UDXDraYkE5ix5T4IzCzoWFD6U/37MrgIj/m6aE9L6LAjKzbRr6dkEl4jcFPbxPFCgbwkmyomv4gi3uRs5o3t6evzWYNlr40mv63YlJlfiuB9Bst9KlrRprfs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717739990; c=relaxed/simple; bh=unlnV+CG5XjBHEC3u/giCHThOcMy/s2Tsig1F7iBUy8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cRlXktz3d5rSkWViGsFgdXobBMJUDcsaqul8Fp8ysLf+G14L0HeaP+QXCfR28ql0ZMbXuMVpA6jzUFNgi91usuyEX9oYng8tivThxJsId5alVnHLM0X/GM7Cpp65SDMWtaVTSaDWqQhwgA00V4oVlQkYpNCOFHpmpV1XGkyy8og= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=wPD/S+1E; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="wPD/S+1E" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=NEvcTF83bXOZ23el9r2TCn477dSWKAC8oqWBmZ1SUxc=; b=wPD/S+1ERpv3xRaqWYRjMpTxJo W95gtHCkPi6N+LIhBtXBOK7ZQqSIUZ5tNUikRSfEfkDlm1Q140wgGwcG6EoRWq96yXaJCIt9RE8uf Jp4zrOn3WpG4hHNobDMSAvQcKTmmMXZQVwxCvevq/KYZan22mGNd7YQiwBhqGp+fSMm6aiVcIBkUV bTBifJ40IP5zPeQ+ScRvRaDlSmvyWtL8hU8tT4VHwOylhlUjo6S77MBhpuTLk6o4jjZLSVq6V/5w1 No0utZRT19nW4jXdWYV6/8yZ4CDKHGcn3tRmkWT+QUXzjhdYdaWrUua++UMJTztQo/JDI72ZNgg1S LbdfaBRw==; Received: from [2001:4bb8:2dd:aa7c:2c19:fa33:48d4:a32f] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.97.1 #2 (Red Hat Linux)) id 1sFSda-0000000Ca4f-0ktN; Fri, 07 Jun 2024 05:59:42 +0000 From: Christoph Hellwig To: Jens Axboe , "Martin K. Petersen" Cc: Mike Snitzer , Mikulas Patocka , Song Liu , Yu Kuai , Dan Williams , Vishal Verma , Dave Jiang , Ira Weiny , Keith Busch , Sagi Grimberg , Chaitanya Kulkarni , linux-block@vger.kernel.org, dm-devel@lists.linux.dev, linux-raid@vger.kernel.org, nvdimm@lists.linux.dev, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org Subject: [PATCH 07/11] block: use kstrtoul in flag_store Date: Fri, 7 Jun 2024 07:59:01 +0200 Message-ID: <20240607055912.3586772-8-hch@lst.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240607055912.3586772-1-hch@lst.de> References: <20240607055912.3586772-1-hch@lst.de> Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Use the text to integer helper that has error handling and doesn't modify the input pointer. Signed-off-by: Christoph Hellwig Reviewed-by: Keith Busch Reviewed-by: Chaitanya Kulkarni Reviewed-by: Hannes Reinecke Reviewed-by: Martin K. Petersen --- block/blk-integrity.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/block/blk-integrity.c b/block/blk-integrity.c index 24671d9f90a124..58760a6d6b2209 100644 --- a/block/blk-integrity.c +++ b/block/blk-integrity.c @@ -247,8 +247,12 @@ static ssize_t flag_store(struct device *dev, struct device_attribute *attr, const char *page, size_t count, unsigned char flag) { struct blk_integrity *bi = dev_to_bi(dev); - char *p = (char *) page; - unsigned long val = simple_strtoul(p, &p, 10); + unsigned long val; + int err; + + err = kstrtoul(page, 10, &val); + if (err) + return err; if (val) bi->flags |= flag;