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Align writes to blockdevice write size in MBRBlockDevice

pull/8262/head
Juho Eskeli 2018-09-26 22:43:27 +03:00
parent ac6ca73dd8
commit d32b454c5b
1 changed files with 6 additions and 0 deletions
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6
features/storage/blockdevice/MBRBlockDevice.cpp
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@ -73,6 +73,12 @@ static int partition_absolute(
{
// Allocate smallest buffer necessary to write MBR
uint32_t buffer_size = std::max<uint32_t>(bd->get_program_size(), sizeof(struct mbr_table));
// Prevent alignment issues
if(buffer_size % bd->get_program_size() != 0) {
buffer_size += bd->get_program_size() - (buffer_size % bd->get_program_size());
}
uint8_t *buffer = new uint8_t[buffer_size];
// Check for existing MBR