diff options
| -rw-r--r-- | fs/smb/client/smb1ops.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/smb/client/smb1ops.c b/fs/smb/client/smb1ops.c index db3695eddcf9..749a83cd0deb 100644 --- a/fs/smb/client/smb1ops.c +++ b/fs/smb/client/smb1ops.c @@ -614,7 +614,13 @@ static int cifs_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon, * There may be higher info levels that work but are there Windows * server or network appliances for which IndexNumber field is not * guaranteed unique? + * + * CIFSGetSrvInodeNumber() uses SMB_QUERY_FILE_INTERNAL_INFO + * which is SMB PASSTHROUGH level therefore check for capability. + * Note that this function can be called with tcon == NULL. */ + if (tcon && !(tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU)) + return -EOPNOTSUPP; return CIFSGetSrvInodeNumber(xid, tcon, full_path, uniqueid, cifs_sb->local_nls, cifs_remap(cifs_sb)); |