[PATCH] smb: client: fix null auth

[Paulo Alcantara]

Scott Mayhew <smayhew at redhat.com> writes:

> Commit abdb1742a312 removed code that clears ctx->username when
> sec=none, so attempting to mount with '-o sec=none' now fails with
> -EACCES.  Fix it by adding that logic to the parsing of the 'sec'
> option, as well as checking if the mount is using null auth before
> setting the username when parsing the 'user' option.
>
> Fixes: abdb1742a312 ("cifs: get rid of mount options string parsing")
> Signed-off-by: Scott Mayhew <smayhew at redhat.com>
> ---
>  fs/smb/client/fs_context.c | 4 ++++
>  1 file changed, 4 insertions(+)

Reviewed-by: Paulo Alcantara (SUSE) <pc at manguebit.com>