Merge tag '6.4-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:
"Four small smb3 client fixes:

- two small fixes suggested by kernel test robot

- small cleanup fix

- update Paulo's email address in the maintainer file"

* tag '6.4-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: address unused variable warning
smb: delete an unnecessary statement
smb3: missing null check in SMB2_change_notify
smb3: update a reviewer email in MAINTAINERS file

MAINTAINERS

···
 
 COMMON INTERNET FILE SYSTEM CLIENT (CIFS and SMB3)
 M:	Steve French <[e-mail]>
-R:	Paulo Alcantara <[e-mail]> (DFS, global name space)
+R:	Paulo Alcantara <[e-mail]> (DFS, global name space)
 R:	Ronnie Sahlberg <[e-mail]> (directory leases, sparse files)
 R:	Shyam Prasad N <[e-mail]> (multichannel)
 R:	Tom Talpey <[e-mail]> (RDMA, smbdirect)

fs/smb/client/ioctl.c

···
 	struct tcon_link *tlink;
 	struct cifs_sb_info *cifs_sb;
 	__u64	ExtAttrBits = 0;
+#ifdef CONFIG_CIFS_POSIX
+#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
 	__u64   caps;
+#endif /* CONFIG_CIFS_ALLOW_INSECURE_LEGACY */
+#endif /* CONFIG_CIFS_POSIX */
 
 	xid = get_xid();
 
···
 			if (pSMBFile == NULL)
 				break;
 			tcon = tlink_tcon(pSMBFile->tlink);
-			caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
 #ifdef CONFIG_CIFS_POSIX
 #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
+			caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
 			if (CIFS_UNIX_EXTATTR_CAP & caps) {
 				__u64	ExtAttrMask = 0;
 				rc = CIFSGetExtAttr(xid, tcon,

fs/smb/client/smb2ops.c

···
 		 * Add a new one instead
 		 */
 		spin_lock(&ses->iface_lock);
-		iface = niface = NULL;
 		list_for_each_entry_safe(iface, niface, &ses->iface_list,
 					 iface_head) {
 			ret = iface_cmp(iface, &tmp_iface);

fs/smb/client/smb2pdu.c

···
 		if (*out_data == NULL) {
 			rc = -ENOMEM;
 			goto cnotify_exit;
-		} else
+		} else if (plen)
 			*plen = le32_to_cpu(smb_rsp->OutputBufferLength);
 	}