Does struct qstr->name should be terminated ?

[Jerome de Vivie <jerome.devivie@free.fr>]

I've work with "struct qstr" for a while without bothering with the last 
caracter: qstr->name[qstr->len]. I get oops from my module but after 
investigation, i found lines in fs/namei.c that are using this caracter:

In do_rename:
         /* unless the source is a directory trailing slashes give 
-ENOTDIR */
         if (!S_ISDIR(old_dentry->d_inode->i_mode)) {
                 error = -ENOTDIR;
                 if (oldnd.last.name[oldnd.last.len])
                         goto exit4;
                 if (newnd.last.name[newnd.last.len])
                         goto exit4;
         }

So, do i need to initialize this caracter when allocating new qstr ? Is 
this caracter is used in other place in the VFS ?

regards,

j.