diff options
| -rw-r--r-- | block/vpc.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/block/vpc.c b/block/vpc.c index 08a0f71..6cb656a 100644 --- a/block/vpc.c +++ b/block/vpc.c @@ -344,7 +344,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags, if (disk_type == VHD_DYNAMIC) { ret = bdrv_pread(bs->file, be64_to_cpu(footer->data_offset), - &dyndisk_header, 1024); + &dyndisk_header, sizeof(dyndisk_header)); if (ret < 0) { error_setg(errp, "Error reading dynamic VHD header"); goto fail; @@ -858,7 +858,7 @@ static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf, } /* Prepare the Dynamic Disk Header */ - memset(&dyndisk_header, 0, 1024); + memset(&dyndisk_header, 0, sizeof(dyndisk_header)); memcpy(dyndisk_header.magic, "cxsparse", 8); @@ -872,12 +872,13 @@ static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf, dyndisk_header.block_size = cpu_to_be32(block_size); dyndisk_header.max_table_entries = cpu_to_be32(num_bat_entries); - dyndisk_header.checksum = cpu_to_be32(vpc_checksum(&dyndisk_header, 1024)); + dyndisk_header.checksum = cpu_to_be32( + vpc_checksum(&dyndisk_header, sizeof(dyndisk_header))); /* Write the header */ offset = 512; - ret = blk_pwrite(blk, offset, &dyndisk_header, 1024, 0); + ret = blk_pwrite(blk, offset, &dyndisk_header, sizeof(dyndisk_header), 0); if (ret < 0) { goto fail; } |