The size passed to snprintf() includes the space for the trailing space. So there is no reason here not to use all the available space. So remove the -1 when computing 'name_len'. While at it, use the size of the array directly instead of the intermediate 'name_len' variable. snprintf() also guaranties that the buffer if NULL terminated, so there is no need to write an additional trailing NULL "To be sure". Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> --- fs/ntfs3/super.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c index 9153dffde950..dcc8984a10a4 100644 --- a/fs/ntfs3/super.c +++ b/fs/ntfs3/super.c @@ -122,13 +122,12 @@ void ntfs_inode_printk(struct inode *inode, const char *fmt, ...) if (name) { struct dentry *de = d_find_alias(inode); - const u32 name_len = ARRAY_SIZE(s_name_buf) - 1; if (de) { spin_lock(&de->d_lock); - snprintf(name, name_len, " \"%s\"", de->d_name.name); + snprintf(name, sizeof(s_name_buf), " \"%s\"", + de->d_name.name); spin_unlock(&de->d_lock); - name[name_len] = 0; /* To be sure. */ } else { name[0] = 0; } -- 2.34.1