From nobody Fri Dec 19 08:54:55 2025 Received: from mail-pj1-f48.google.com (mail-pj1-f48.google.com [209.85.216.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 500291A7AE3 for ; Sat, 11 Oct 2025 06:38:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760164722; cv=none; b=Ar0DWzzoQZkjhpwvVorabv9z2UHkFb/HFOQ5H/VNowWyJwWQJscIiPolfE8banX7xeh+/AHk0oVAQ7VAtvL60SiP3gFRcMZCqQb7Aq+PVZtzt+wxncdLIksn/5oxKFXgdiHz/hqS+Ew4Il+/EzS8gu2Gx0f74yk7J1PLlmyPgSQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760164722; c=relaxed/simple; bh=LjdMP4wX5K2PJoIkDNssZ0x5qpw4jYUvKfOFzldt+78=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=leRkfqeqxE509+rNiTrvOJGFUWY72RiHxafVPS+vLAyJ1675GFT8gInXuSp0xH+WlewpREQQ+GYMxTqd9eWxhqK119i561QyyCllxLAK1i0L1NdPj6+3h+nzjF0UAjde5/R/NgJTDqI9ABD906nEgeRmpjXmNvU+znDZCTH92ms= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=decIIU/7; arc=none smtp.client-ip=209.85.216.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="decIIU/7" Received: by mail-pj1-f48.google.com with SMTP id 98e67ed59e1d1-33833a0a58cso479784a91.3 for ; Fri, 10 Oct 2025 23:38:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1760164720; x=1760769520; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=i4KsdyrgfWB/FqT6OOcbFSO1XBvuLxrHfzAVePQ1iTY=; b=decIIU/7mEcJBYlwWbXUi7CyqhPn2bqONs86NcMs4yZ8v40vy95Pp8EXXBdCbhim6R 1/A6YfAiKaeguMLCJ7wukvmh9c9iRqNGQAJebMu040WCSw9PT2nIgvreKlAKZKFcTEWt 3jUYy61zKCuwsdmlU87zZvoCvhr2TkusC0Z4/3tyBNvlWBp0fhKWX6XmRp/cdwwbHWyG 10S3I5tjmefWq2MVe3GUrne03Le4U15ukBXEGpQudijXHLCXWuGMUPHXhLeba918dmyn GAhS8mjS/UxYHO8up2PL15Un7f0nYSNjUuAE8eoBm3fi5ubyxZn7hgHGwN0TVfZco/S+ 6P7Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1760164720; x=1760769520; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=i4KsdyrgfWB/FqT6OOcbFSO1XBvuLxrHfzAVePQ1iTY=; b=v5QQTpPA+HLalQzpABIQtGSllfGQT5wSPRp9wuDOGHyw6JRBSWqaBdPIuwlZrnQMy3 xUrNRb277T0PKya15rxr/xQM/qQC+tN5+WtjaV077zvSitIi4b39y7jiryGXebxdj8IF 8opKiesIJF+fkmpByBXJYDVZfimF4OKJaRHJ3WZ0jXMXTj4ghqb06BAFmW7DbBpyUG6t y590xBeSNmHIozeOj0OOosfg0Uh7VEq/O9m8yUrCjk1vVpU8nw7BmHbLYRB2LW1CdSOY pRwCvae3UhrMrMQyf6hLSoSvCSkGCbQ0vp6oWiNDdS3RDm/CYkl0n8nYVS3NsAwBYTeA zblw== X-Forwarded-Encrypted: i=1; AJvYcCVoyFtd682zDKcrP5QFnagtYpQMyJk0JR6gEMBOsBL9NWC+xiUHSk4PGCC37mlNRExOZk5gtwHBkqUZWwk=@vger.kernel.org X-Gm-Message-State: AOJu0YyKTG4S1FR+izChDlBMejy7rMrkezZKb/MBhmt+xNnK9/eHkhUA PXgepPOHDBsYmq13vmV8rvSYRDpZx2QTefKnBtT4d6W2foZegWU7s+VX X-Gm-Gg: ASbGncvYwGHl7isE9EQPAbwRspUCsxiQ2XmpItw2vI2OhXENk7UM0nNgQpJczh6s0Yg v+kf8u+Dc2PAL2/rBEpRqT1iBOeJ1tvMNoRj1HqhFQV5MmM4vZGQQZkwoyAl2KshVgmJnn5XO8q FMLGPN/P9f9lV9fF6rf3rKW9gutE1RFU+1gTlcVJ3pgV6xWmqsR8VrU/H3Pk+NX/ZmmOz5xuSb/ 71xIWFuIKZNotXkSkxMPVwLcLzmtaE+8wsmrErI2FqmkW5LAQ150/cUdcIqEWm/JMWGWkpJwCmo FrcLtjkpL1Y6j/r1LvCR6/3ge2MrNM8oum33QQvcT0LxCrO0iNwHlk9jWiI87/NJB7HBy8llxF/ gn8tX88821+azBDlgBs792x5UEONNifOkans+9lJ5VpPf4tRP X-Google-Smtp-Source: AGHT+IF1JQXObCuG7xFhogMbxfyVhO5SQR9FmzcjivYXOk8ZFuH6BJG6HLBb/IJlGVfYnt4qekicwg== X-Received: by 2002:a17:903:1a6f:b0:257:3283:b859 with SMTP id d9443c01a7336-29027321d06mr119587995ad.9.1760164720383; Fri, 10 Oct 2025 23:38:40 -0700 (PDT) Received: from ranganath.. ([2406:7400:98:ffd0:8dcb:f5b3:8234:d05]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-29034dea083sm76040465ad.24.2025.10.10.23.38.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Oct 2025 23:38:39 -0700 (PDT) From: Ranganath V N To: lkp@intel.com Cc: adilger.kernel@dilger.ca, david.hunter.linux@gmail.com, khalid@kernel.org, linux-ext4@vger.kernel.org, linux-kernel-mentees@lists.linuxfoundation.org, linux-kernel@vger.kernel.org, oe-kbuild-all@lists.linux.dev, skhan@linuxfoundation.org, tytso@mit.edu, vnranganath.20@gmail.com Subject: [PATCH v2] fs: ext4: fix uninitialized symbols Date: Sat, 11 Oct 2025 12:08:29 +0530 Message-ID: <20251011063830.47485-1-vnranganath.20@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <202510110207.yBvUMr5Z-lkp@intel.com> References: <202510110207.yBvUMr5Z-lkp@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Fix the issue detected by the smatch tool. fs/ext4/inode.c:3583 ext4_map_blocks_atomic_write_slow() error: uninitializ= ed symbol 'next_pblk'. fs/ext4/namei.c:1776 ext4_lookup() error: uninitialized symbol 'de'. fs/ext4/namei.c:1829 ext4_get_parent() error: uninitialized symbol 'de'. fs/ext4/namei.c:3162 ext4_rmdir() error: uninitialized symbol 'de'. fs/ext4/namei.c:3242 __ext4_unlink() error: uninitialized symbol 'de'. fs/ext4/namei.c:3697 ext4_find_delete_entry() error: uninitialized symbol '= de'. These changes enhance code clarity, address static analysis tool errors. Signed-off-by: Ranganath V N --- v2: corrected the kernel test robot noticed build errors. fs/ext4/inode.c | 2 +- fs/ext4/namei.c | 10 +++++----- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 5b7a15db4953..f20db3f4ef68 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3544,7 +3544,7 @@ static int ext4_map_blocks_atomic_write_slow(handle_t= *handle, ext4_lblk_t m_lblk =3D map->m_lblk; unsigned int m_len =3D map->m_len; unsigned int mapped_len =3D 0, m_flags =3D 0; - ext4_fsblk_t next_pblk; + ext4_fsblk_t next_pblk =3D 0; bool check_next_pblk =3D false; int ret =3D 0; =20 diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 2cd36f59c9e3..045616033515 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1762,7 +1762,7 @@ static struct buffer_head * ext4_dx_find_entry(struct= inode *dir, static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry= , unsigned int flags) { struct inode *inode; - struct ext4_dir_entry_2 *de; + struct ext4_dir_entry_2 *de =3D NULL; struct buffer_head *bh; =20 if (dentry->d_name.len > EXT4_NAME_LEN) @@ -1818,7 +1818,7 @@ static struct dentry *ext4_lookup(struct inode *dir, = struct dentry *dentry, unsi struct dentry *ext4_get_parent(struct dentry *child) { __u32 ino; - struct ext4_dir_entry_2 * de; + struct ext4_dir_entry_2 * de =3D NULL; struct buffer_head *bh; =20 bh =3D ext4_find_entry(d_inode(child), &dotdot_name, &de, NULL); @@ -3133,7 +3133,7 @@ static int ext4_rmdir(struct inode *dir, struct dentr= y *dentry) int retval; struct inode *inode; struct buffer_head *bh; - struct ext4_dir_entry_2 *de; + struct ext4_dir_entry_2 *de =3D NULL; handle_t *handle =3D NULL; =20 retval =3D ext4_emergency_state(dir->i_sb); @@ -3224,7 +3224,7 @@ int __ext4_unlink(struct inode *dir, const struct qst= r *d_name, { int retval =3D -ENOENT; struct buffer_head *bh; - struct ext4_dir_entry_2 *de; + struct ext4_dir_entry_2 *de =3D NULL; handle_t *handle; int skip_remove_dentry =3D 0; =20 @@ -3688,7 +3688,7 @@ static int ext4_find_delete_entry(handle_t *handle, s= truct inode *dir, { int retval =3D -ENOENT; struct buffer_head *bh; - struct ext4_dir_entry_2 *de; + struct ext4_dir_entry_2 *de =3D NULL; =20 bh =3D ext4_find_entry(dir, d_name, &de, NULL); if (IS_ERR(bh)) --=20 2.43.0