Clean up two declarations of blob_len

- Eliminate double declaration of variable blob_len
- Modify function build_ntlmssp_auth_blob to return error code
  as well as length of the blob.

Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Reviewed-by: Jeff Layton <jlayton@samba.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 8 insertions, 5 deletions

diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 2111bed71b1f..e35dc60d3255 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -464,6 +464,7 @@ static void build_ntlmssp_negotiate_blob(unsigned char *pbuffer,
    maximum possible size is fixed and small, making this approach cleaner.
    This function returns the length of the data in the blob */
 static int build_ntlmssp_auth_blob(unsigned char *pbuffer,
+                                        u16 *buflen,
                                    struct cifsSesInfo *ses,
                                    const struct nls_table *nls_cp)
 {
@@ -558,7 +559,8 @@ static int build_ntlmssp_auth_blob(unsigned char *pbuffer,
         sec_blob->SessionKey.MaximumLength = 0;
 
 setup_ntlmv2_ret:
-        return tmp - pbuffer;
+        *buflen = tmp - pbuffer;
+        return rc;
 }
 
 
@@ -591,7 +593,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses,
         int bytes_remaining;
         struct key *spnego_key = NULL;
         __le32 phase = NtLmNegotiate; /* NTLMSSP, if needed, is multistage */
-        int blob_len;
+        u16 blob_len;
         char *ntlmsspblob = NULL;
 
         if (ses == NULL)
@@ -848,8 +850,10 @@ ssetup_ntlmssp_authenticate:
                                         goto ssetup_exit;
                                 }
 
-                                blob_len = build_ntlmssp_auth_blob(ntlmsspblob,
-                                                        ses, nls_cp);
+                                rc = build_ntlmssp_auth_blob(ntlmsspblob,
+                                                        &blob_len, ses, nls_cp);
+                                if (rc)
+                                        goto ssetup_exit;
                                 iov[1].iov_len = blob_len;
                                 iov[1].iov_base = ntlmsspblob;
                                 pSMB->req.SecurityBlobLength =
@@ -927,7 +931,6 @@ ssetup_ntlmssp_authenticate:
         bcc_ptr = pByteArea(smb_buf);
 
         if (smb_buf->WordCount == 4) {
-                __u16 blob_len;
                 blob_len = le16_to_cpu(pSMB->resp.SecurityBlobLength);
                 if (blob_len > bytes_remaining) {
                         cERROR(1, "bad security blob length %d", blob_len);