uint8_t secs_per_cyl = 0;
size_t block_size, num_bat_entries;
int64_t total_sectors = 0;
+ int ret = -EIO;
// Read out options
while (options && options->name) {
for (i = 0; total_sectors > (int64_t)cyls * heads * secs_per_cyl; i++) {
if (calculate_geometry(total_sectors + i,
&cyls, &heads, &secs_per_cyl)) {
- return -EFBIG;
+ ret = -EFBIG;
+ goto fail;
}
}
total_sectors = (int64_t) cyls * heads * secs_per_cyl;
block_size = 0x200000;
num_bat_entries = (total_sectors + block_size / 512) / (block_size / 512);
- if (write(fd, buf, HEADER_SIZE) != HEADER_SIZE)
- return -EIO;
+ if (write(fd, buf, HEADER_SIZE) != HEADER_SIZE) {
+ goto fail;
+ }
- if (lseek(fd, 1536 + ((num_bat_entries * 4 + 511) & ~511), SEEK_SET) < 0)
- return -EIO;
- if (write(fd, buf, HEADER_SIZE) != HEADER_SIZE)
- return -EIO;
+ if (lseek(fd, 1536 + ((num_bat_entries * 4 + 511) & ~511), SEEK_SET) < 0) {
+ goto fail;
+ }
+ if (write(fd, buf, HEADER_SIZE) != HEADER_SIZE) {
+ goto fail;
+ }
// Write the initial BAT
- if (lseek(fd, 3 * 512, SEEK_SET) < 0)
- return -EIO;
+ if (lseek(fd, 3 * 512, SEEK_SET) < 0) {
+ goto fail;
+ }
memset(buf, 0xFF, 512);
- for (i = 0; i < (num_bat_entries * 4 + 511) / 512; i++)
- if (write(fd, buf, 512) != 512)
- return -EIO;
+ for (i = 0; i < (num_bat_entries * 4 + 511) / 512; i++) {
+ if (write(fd, buf, 512) != 512) {
+ goto fail;
+ }
+ }
// Prepare the Dynamic Disk Header
dyndisk_header->checksum = be32_to_cpu(vpc_checksum(buf, 1024));
// Write the header
- if (lseek(fd, 512, SEEK_SET) < 0)
- return -EIO;
- if (write(fd, buf, 1024) != 1024)
- return -EIO;
+ if (lseek(fd, 512, SEEK_SET) < 0) {
+ goto fail;
+ }
+ if (write(fd, buf, 1024) != 1024) {
+ goto fail;
+ }
+ ret = 0;
+
+ fail:
close(fd);
- return 0;
+ return ret;
}
static void vpc_close(BlockDriverState *bs)