Revision feba23b1 block/qed.c

b/block/qed.c
1425 1425
    memcpy(buffer, &le_header, sizeof(le_header));
1426 1426
    buffer_len = sizeof(le_header);
1427 1427

  
1428
    memcpy(buffer + buffer_len, backing_file, backing_file_len);
1429
    buffer_len += backing_file_len;
1428
    if (backing_file) {
1429
        memcpy(buffer + buffer_len, backing_file, backing_file_len);
1430
        buffer_len += backing_file_len;
1431
    }
1430 1432

  
1431 1433
    /* Write new header */
1432 1434
    ret = bdrv_pwrite_sync(bs->file, 0, buffer, buffer_len);

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