This looks somehow fishy (note the "rc" settings):

<--  snip  -->

...
int
cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
           char *mount_data, const char *devname)
{
...
                                /* BB check if this works for exactly length
                                 * three strings */
                                if ((strchr(volume_info.UNC + 3, '\\') == NULL)
                                    && (strchr(volume_info.UNC + 3, '/') ==
                                        NULL)) {
                                        rc = connect_to_dfs_path(xid, pSesInfo,
                                                "", cifs_sb->local_nls,
                                                cifs_sb->mnt_cifs_flags &
                                                  CIFS_MOUNT_MAP_SPECIAL_CHR);
                                        rc = -ENODEV;
                                        goto out;

<--  snip  -->

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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