Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

Pull CIFS fixes from Steve French.

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  CIFS: Fix cifs_do_create error hadnling
  cifs: print error code if smb signature verification fails
  CIFS: Fix log messages in packet checking for SMB2
  CIFS: Protect i_nlink from being negative