From: Namjae Jeon <linkinjeon@kernel.org>
Date: Fri, 10 Apr 2026 11:29:44 +0000 (+0900)
Subject: ntfs: fix uninitialized variable in ntfs_write_simple_iomap_begin_non_resident
X-Git-Tag: v7.1-rc1~14^2~8
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=8a59a2d84fa3de2b4bbb8759b52e62c9c06d9d32;p=thirdparty%2Fkernel%2Flinux.git

ntfs: fix uninitialized variable in ntfs_write_simple_iomap_begin_non_resident

Smatch reported that err could be used uninitialized if the code path
does not enter the first ntfs_zero_range() block.

Reported-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
---

diff --git a/fs/ntfs/iomap.c b/fs/ntfs/iomap.c
index 621645fbbf2e..3d1458dea90f 100644
--- a/fs/ntfs/iomap.c
+++ b/fs/ntfs/iomap.c
@@ -384,7 +384,7 @@ static int ntfs_write_simple_iomap_begin_non_resident(struct inode *inode, loff_
 	loff_t vcn_ofs, rl_length;
 	struct runlist_element *rl, *rlc;
 	bool is_retry = false;
-	int err;
+	int err = 0;
 	s64 vcn, lcn;
 	s64 max_clu_count =
 		ntfs_bytes_to_cluster(vol, round_up(length, vol->cluster_size));