From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relayaws-01.paragon-software.com (relayaws-01.paragon-software.com [35.157.23.187]) (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 8466B7B for ; Mon, 26 Dec 2022 15:16:00 +0000 (UTC) Received: from dlg2.mail.paragon-software.com (vdlg-exch-02.paragon-software.com [172.30.1.105]) by relayaws-01.paragon-software.com (Postfix) with ESMTPS id 013101B7; Mon, 26 Dec 2022 15:12:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=paragon-software.com; s=mail; t=1672067549; bh=vROiKSym8cI4wQS/SSI2A7qFfbXsoMydSXWspjPpWl4=; h=Date:Subject:To:CC:References:From:In-Reply-To; b=opKq4WXuxvDL25/p+VNd0TA3bdByvsGER6ZxROyvWuZjY8lqtqxJEPSIRJNL/5cfn T95PlGxSvaUhyyyb8hHqCALudLnkZJufqhrf1sf7jLt1prNvEj7GB6ohSnLQt60O5a dzjgF2WyHAZqPh8HLf7vbUnihzkM4nNuKp01ggYI= Received: from [192.168.211.153] (192.168.211.153) by vdlg-exch-02.paragon-software.com (172.30.1.105) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.7; Mon, 26 Dec 2022 18:15:57 +0300 Message-ID: Date: Mon, 26 Dec 2022 19:15:57 +0400 Precedence: bulk X-Mailing-List: ntfs3@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Subject: Re: [PATCH] fs/ntfs3: Uninitialized variable bug in ntfs_d_compare() Content-Language: en-US To: Dan Carpenter CC: , References: From: Konstantin Komarov In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.211.153] X-ClientProxiedBy: vobn-exch-01.paragon-software.com (172.30.72.13) To vdlg-exch-02.paragon-software.com (172.30.1.105) On 14.10.2022 13:40, Dan Carpenter wrote: > Smatch detected an uninitialized variable bug: > > fs/ntfs3/namei.c:487 ntfs_d_compare() error: uninitialized symbol 'uni1' > > Fixes: a3a956c78efa ("fs/ntfs3: Add option "nocase"") > Signed-off-by: Dan Carpenter > --- > fs/ntfs3/namei.c | 12 ++++-------- > 1 file changed, 4 insertions(+), 8 deletions(-) > > diff --git a/fs/ntfs3/namei.c b/fs/ntfs3/namei.c > index 315763eb05ff..5d3a6ce3f05f 100644 > --- a/fs/ntfs3/namei.c > +++ b/fs/ntfs3/namei.c > @@ -431,10 +431,8 @@ static int ntfs_d_compare(const struct dentry *dentry, unsigned int len1, > > /* First try fast implementation. */ > for (;;) { > - if (!lm--) { > - ret = len1 == len2 ? 0 : 1; > - goto out; > - } > + if (!lm--) > + return len1 == len2 ? 0 : 1; > > if ((c1 = *n1++) == (c2 = *n2++)) > continue; > @@ -442,10 +440,8 @@ static int ntfs_d_compare(const struct dentry *dentry, unsigned int len1, > if (c1 >= 0x80 || c2 >= 0x80) > break; > > - if (toupper(c1) != toupper(c2)) { > - ret = 1; > - goto out; > - } > + if (toupper(c1) != toupper(c2)) > + return 1; > } > > /* Thanks for work, this bug has already been fixed: https://lore.kernel.org/ntfs3/20221004232359.285685-1-nathan@kernel.org/