NFSv4: Clean up decode_getfattr()

Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>

fs/nfs/nfs4xdr.c

@@ -2996,55 +2996,91 @@ static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, cons
 	umode_t fmode = 0;
 	uint64_t fileid;
 
-	if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
+	status = decode_op_hdr(xdr, OP_GETATTR);
+	if (status < 0)
 		goto xdr_error;
-	if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
+
+	status = decode_attr_bitmap(xdr, bitmap);
+	if (status < 0)
 		goto xdr_error;
 
-	if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
+	status = decode_attr_length(xdr, &attrlen, &savep);
+	if (status < 0)
 		goto xdr_error;
 
 
-	if ((status = decode_attr_type(xdr, bitmap, &type)) != 0)
+	status = decode_attr_type(xdr, bitmap, &type);
+	if (status < 0)
 		goto xdr_error;
 	fattr->mode = nfs_type2fmt[type];
 
-	if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0)
+	status = decode_attr_change(xdr, bitmap, &fattr->change_attr);
+	if (status < 0)
 		goto xdr_error;
-	if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0)
+
+	status = decode_attr_size(xdr, bitmap, &fattr->size);
+	if (status < 0)
 		goto xdr_error;
-	if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid)) != 0)
+
+	status = decode_attr_fsid(xdr, bitmap, &fattr->fsid);
+	if (status < 0)
 		goto xdr_error;
-	if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0)
+
+	status = decode_attr_fileid(xdr, bitmap, &fattr->fileid);
+	if (status < 0)
 		goto xdr_error;
-	if ((status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr,
+
+	status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr,
 						struct nfs4_fs_locations,
-						fattr))) != 0)
+						fattr));
+	if (status < 0)
 		goto xdr_error;
-	if ((status = decode_attr_mode(xdr, bitmap, &fmode)) != 0)
+
+	status = decode_attr_mode(xdr, bitmap, &fmode);
+	if (status < 0)
 		goto xdr_error;
 	fattr->mode |= fmode;
-	if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0)
+
+	status = decode_attr_nlink(xdr, bitmap, &fattr->nlink);
+	if (status < 0)
 		goto xdr_error;
-	if ((status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid)) != 0)
+
+	status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid);
+	if (status < 0)
 		goto xdr_error;
-	if ((status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid)) != 0)
+
+	status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid);
+	if (status < 0)
 		goto xdr_error;
-	if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0)
+
+	status = decode_attr_rdev(xdr, bitmap, &fattr->rdev);
+	if (status < 0)
 		goto xdr_error;
-	if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0)
+
+	status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used);
+	if (status < 0)
 		goto xdr_error;
-	if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0)
+
+	status = decode_attr_time_access(xdr, bitmap, &fattr->atime);
+	if (status < 0)
 		goto xdr_error;
-	if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0)
+
+	status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime);
+	if (status < 0)
 		goto xdr_error;
-	if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0)
+
+	status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime);
+	if (status < 0)
 		goto xdr_error;
-	if ((status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid)) != 0)
+
+	status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid);
+	if (status < 0)
 		goto xdr_error;
 	if (fattr->fileid == 0 && fileid != 0)
 		fattr->fileid = fileid;
-	if ((status = verify_attr_len(xdr, savep, attrlen)) == 0)
+
+	status = verify_attr_len(xdr, savep, attrlen);
+	if (status == 0)
 		fattr->valid = NFS_ATTR_FATTR_V4;
 xdr_error:
 	dprintk("%s: xdr returned %d\n", __func__, -status);