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Kernel: Propagate overflow errors from Memory::page_round_up

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Fixes #11402.
This commit is contained in:
Guilherme Goncalves 2021-12-24 11:22:11 -03:00 • committed by Andreas Kling
parent 11599a3342
commit 33b78915d3
31 changed files with 112 additions and 100 deletions
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4
Kernel/TTY/VirtualConsole.cpp
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@ -131,7 +131,7 @@ UNMAP_AFTER_INIT void VirtualConsole::initialize()
// Allocate twice of the max row * max column * sizeof(Cell) to ensure we can have some sort of history mechanism...
auto size = GraphicsManagement::the().console()->max_column() * GraphicsManagement::the().console()->max_row() * sizeof(Cell) * 2;
m_cells = MM.allocate_kernel_region(Memory::page_round_up(size), "Virtual Console Cells", Memory::Region::Access::ReadWrite, AllocationStrategy::AllocateNow).release_value();
m_cells = MM.allocate_kernel_region(Memory::page_round_up(size).release_value_but_fixme_should_propagate_errors(), "Virtual Console Cells", Memory::Region::Access::ReadWrite, AllocationStrategy::AllocateNow).release_value();
// Add the lines, so we also ensure they will be flushed now
for (size_t row = 0; row < rows(); row++) {
@ -150,7 +150,7 @@ void VirtualConsole::refresh_after_resolution_change()
// Note: From now on, columns() and rows() are updated with the new settings.
auto size = GraphicsManagement::the().console()->max_column() * GraphicsManagement::the().console()->max_row() * sizeof(Cell) * 2;
auto new_cells = MM.allocate_kernel_region(Memory::page_round_up(size), "Virtual Console Cells", Memory::Region::Access::ReadWrite, AllocationStrategy::AllocateNow).release_value();
auto new_cells = MM.allocate_kernel_region(Memory::page_round_up(size).release_value_but_fixme_should_propagate_errors(), "Virtual Console Cells", Memory::Region::Access::ReadWrite, AllocationStrategy::AllocateNow).release_value();
if (rows() < old_rows_count) {
m_lines.shrink(rows());