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 621645fbbf2ed4cfcf12fce883437fe50bd7360a..3d1458dea90f90fccd7a6cd61c08ee0374c52310 100644 (file)
--- 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));