cifs: clean up indentation in CIFSSMBQAllEAs

Add a label that we can goto on error, and reduce some of the
if/then/else indentation in this function.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 941441d..3070958 100644 (file)
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -5282,9 +5282,10 @@ CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon,
        int rc = 0;
        int bytes_returned;
        int name_len;
+       struct fealist *ea_response_data;
        struct fea *temp_fea;
        char *temp_ptr;
-       __u16 params, byte_count;
+       __u16 params, byte_count, data_offset;
 
        cFYI(1, ("In Query All EAs path %s", searchName));
 QAllEAsRetry:
@@ -5334,85 +5335,83 @@ QAllEAsRetry:
                         (struct smb_hdr *) pSMBr, &bytes_returned, 0);
        if (rc) {
                cFYI(1, ("Send error in QueryAllEAs = %d", rc));
-       } else {                /* decode response */
-               rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+               goto QAllEAsOut;
+       }
 
-               /* BB also check enough total bytes returned */
-               /* BB we need to improve the validity checking
-               of these trans2 responses */
-               if (rc || (pSMBr->ByteCount < 4))
-                       rc = -EIO;      /* bad smb */
-          /* else if (pFindData){
-                       memcpy((char *) pFindData,
-                              (char *) &pSMBr->hdr.Protocol +
-                              data_offset, kl);
-               }*/ else {
-                       /* check that length of list is not more than bcc */
-                       /* check that each entry does not go beyond length
-                          of list */
-                       /* check that each element of each entry does not
-                          go beyond end of list */
-                       __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
-                       struct fealist *ea_response_data;
-                       rc = 0;
-                       /* validate_trans2_offsets() */
-                       /* BB check if start of smb + data_offset > &bcc+ bcc */
-                       ea_response_data = (struct fealist *)
-                               (((char *) &pSMBr->hdr.Protocol) +
-                               data_offset);
-                       name_len = le32_to_cpu(ea_response_data->list_len);
-                       cFYI(1, ("ea length %d", name_len));
-                       if (name_len <= 8) {
-                       /* returned EA size zeroed at top of function */
-                               cFYI(1, ("empty EA list returned from server"));
-                       } else {
-                               /* account for ea list len */
-                               name_len -= 4;
-                               temp_fea = ea_response_data->list;
-                               temp_ptr = (char *)temp_fea;
-                               while (name_len > 0) {
-                                       __u16 value_len;
-                                       name_len -= 4;
-                                       temp_ptr += 4;
-                                       rc += temp_fea->name_len;
-                               /* account for prefix user. and trailing null */
-                                       rc = rc + 5 + 1;
-                                       if (rc < (int)buf_size) {
-                                               memcpy(EAData, "user.", 5);
-                                               EAData += 5;
-                                               memcpy(EAData, temp_ptr,
-                                                      temp_fea->name_len);
-                                               EAData += temp_fea->name_len;
-                                               /* null terminate name */
-                                               *EAData = 0;
-                                               EAData = EAData + 1;
-                                       } else if (buf_size == 0) {
-                                               /* skip copy - calc size only */
-                                       } else {
-                                               /* stop before overrun buffer */
-                                               rc = -ERANGE;
-                                               break;
-                                       }
-                                       name_len -= temp_fea->name_len;
-                                       temp_ptr += temp_fea->name_len;
-                                       /* account for trailing null */
-                                       name_len--;
-                                       temp_ptr++;
-                                       value_len =
-                                             le16_to_cpu(temp_fea->value_len);
-                                       name_len -= value_len;
-                                       temp_ptr += value_len;
-                                       /* BB check that temp_ptr is still
-                                             within the SMB BB*/
 
-                                       /* no trailing null to account for
-                                          in value len */
-                                       /* go on to next EA */
-                                       temp_fea = (struct fea *)temp_ptr;
-                               }
-                       }
+       /* BB also check enough total bytes returned */
+       /* BB we need to improve the validity checking
+       of these trans2 responses */
+
+       rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+       if (rc || (pSMBr->ByteCount < 4)) {
+               rc = -EIO;      /* bad smb */
+               goto QAllEAsOut;
+       }
+
+       /* check that length of list is not more than bcc */
+       /* check that each entry does not go beyond length
+          of list */
+       /* check that each element of each entry does not
+          go beyond end of list */
+       /* validate_trans2_offsets() */
+       /* BB check if start of smb + data_offset > &bcc+ bcc */
+
+       data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
+       ea_response_data = (struct fealist *)
+                               (((char *) &pSMBr->hdr.Protocol) + data_offset);
+
+       name_len = le32_to_cpu(ea_response_data->list_len);
+       cFYI(1, ("ea length %d", name_len));
+       if (name_len <= 8) {
+               cFYI(1, ("empty EA list returned from server"));
+               goto QAllEAsOut;
+       }
+
+       /* account for ea list len */
+       name_len -= 4;
+       temp_fea = ea_response_data->list;
+       temp_ptr = (char *)temp_fea;
+       while (name_len > 0) {
+               __u16 value_len;
+               name_len -= 4;
+               temp_ptr += 4;
+               rc += temp_fea->name_len;
+       /* account for prefix user. and trailing null */
+               rc = rc + 5 + 1;
+               if (rc < (int) buf_size) {
+                       memcpy(EAData, "user.", 5);
+                       EAData += 5;
+                       memcpy(EAData, temp_ptr, temp_fea->name_len);
+                       EAData += temp_fea->name_len;
+                       /* null terminate name */
+                       *EAData = 0;
+                       EAData = EAData + 1;
+               } else if (buf_size == 0) {
+                       /* skip copy - calc size only */
+               } else {
+                       /* stop before overrun buffer */
+                       rc = -ERANGE;
+                       break;
                }
+               name_len -= temp_fea->name_len;
+               temp_ptr += temp_fea->name_len;
+               /* account for trailing null */
+               name_len--;
+               temp_ptr++;
+               value_len = le16_to_cpu(temp_fea->value_len);
+               name_len -= value_len;
+               temp_ptr += value_len;
+               /* BB check that temp_ptr is still
+                     within the SMB BB*/
+
+               /* no trailing null to account for
+                  in value len */
+               /* go on to next EA */
+               temp_fea = (struct fea *)temp_ptr;
        }
+
+QAllEAsOut:
        cifs_buf_release(pSMB);
        if (rc == -EAGAIN)
                goto QAllEAsRetry;