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Streamline SendReceiveBlockingLock: Use "goto out:" in an error condi…
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Streamline SendReceiveBlockingLock: Use "goto out:" in an error condition

Signed-off-by: Volker Lendecke <vl@samba.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Volker Lendecke authored and Steve French committed Dec 26, 2008
1 parent 2b2bdfb commit 17c8bfe
Showing 1 changed file with 37 additions and 33 deletions.
70 changes: 37 additions & 33 deletions fs/cifs/transport.c
Original file line number Diff line number Diff line change
Expand Up @@ -1062,44 +1062,48 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon,
cERROR(1, ("Frame too large received. Length: %d Xid: %d",
receive_len, xid));
rc = -EIO;
} else { /* rcvd frame is ok */

if (midQ->resp_buf && out_buf
&& (midQ->midState == MID_RESPONSE_RECEIVED)) {
out_buf->smb_buf_length = receive_len;
memcpy((char *)out_buf + 4,
(char *)midQ->resp_buf + 4,
receive_len);

dump_smb(out_buf, 92);
/* convert the length into a more usable form */
if ((receive_len > 24) &&
(ses->server->secMode & (SECMODE_SIGN_REQUIRED |
SECMODE_SIGN_ENABLED))) {
rc = cifs_verify_signature(out_buf,
&ses->server->mac_signing_key,
midQ->sequence_number+1);
if (rc) {
cERROR(1, ("Unexpected SMB signature"));
/* BB FIXME add code to kill session */
}
}
goto out;
}

*pbytes_returned = out_buf->smb_buf_length;
/* rcvd frame is ok */

/* BB special case reconnect tid and uid here? */
rc = map_smb_to_linux_error(out_buf, 0 /* no log */ );
if (midQ->resp_buf && out_buf
&& (midQ->midState == MID_RESPONSE_RECEIVED)) {
out_buf->smb_buf_length = receive_len;
memcpy((char *)out_buf + 4,
(char *)midQ->resp_buf + 4,
receive_len);

/* convert ByteCount if necessary */
if (receive_len >= sizeof(struct smb_hdr) - 4
/* do not count RFC1001 header */ +
(2 * out_buf->WordCount) + 2 /* bcc */ )
BCC(out_buf) = le16_to_cpu(BCC_LE(out_buf));
} else {
rc = -EIO;
cERROR(1, ("Bad MID state?"));
dump_smb(out_buf, 92);
/* convert the length into a more usable form */
if ((receive_len > 24) &&
(ses->server->secMode & (SECMODE_SIGN_REQUIRED |
SECMODE_SIGN_ENABLED))) {
rc = cifs_verify_signature(out_buf,
&ses->server->mac_signing_key,
midQ->sequence_number+1);
if (rc) {
cERROR(1, ("Unexpected SMB signature"));
/* BB FIXME add code to kill session */
}
}

*pbytes_returned = out_buf->smb_buf_length;

/* BB special case reconnect tid and uid here? */
rc = map_smb_to_linux_error(out_buf, 0 /* no log */ );

/* convert ByteCount if necessary */
if (receive_len >= sizeof(struct smb_hdr) - 4
/* do not count RFC1001 header */ +
(2 * out_buf->WordCount) + 2 /* bcc */ )
BCC(out_buf) = le16_to_cpu(BCC_LE(out_buf));
} else {
rc = -EIO;
cERROR(1, ("Bad MID state?"));
}

out:
DeleteMidQEntry(midQ);
if (rstart && rc == -EACCES)
return -ERESTARTSYS;
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