Merge git://git.samba.org/sfrench/cifs-2.6

* git://git.samba.org/sfrench/cifs-2.6:
  cifs: don't return error from standard_receive3 after marking response malformed
  cifs: request oplock when doing open on lookup
  cifs: fix error handling when cifscreds key payload is an error

fs/cifs/connect.c

@@ -773,10 +773,11 @@ standard_receive3(struct TCP_Server_Info *server, struct mid_q_entry *mid)
 		cifs_dump_mem("Bad SMB: ", buf,
 			min_t(unsigned int, server->total_read, 48));
 
-	if (mid)
-		handle_mid(mid, server, smb_buffer, length);
+	if (!mid)
+		return length;
 
-	return length;
+	handle_mid(mid, server, smb_buffer, length);
+	return 0;
 }
 
 static int
@@ -2125,7 +2126,7 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
 	down_read(&key->sem);
 	upayload = key->payload.data;
 	if (IS_ERR_OR_NULL(upayload)) {
-		rc = PTR_ERR(key);
+		rc = upayload ? PTR_ERR(upayload) : -EINVAL;
 		goto out_key_put;
 	}
 

fs/cifs/dir.c

@@ -492,7 +492,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
 {
 	int xid;
 	int rc = 0; /* to get around spurious gcc warning, set to zero here */
-	__u32 oplock = 0;
+	__u32 oplock = enable_oplocks ? REQ_OPLOCK : 0;
 	__u16 fileHandle = 0;
 	bool posix_open = false;
 	struct cifs_sb_info *cifs_sb;