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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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3
Kernel/Devices/Audio/AC97.cpp
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@ -22,7 +22,8 @@ static constexpr u16 pcm_sample_rate_maximum = 48000;
static ErrorOr<OwnPtr<Memory::Region>> allocate_physical_buffer(size_t size, StringView name)
{
auto vmobject = TRY(Memory::AnonymousVMObject::try_create_physically_contiguous_with_size(Memory::page_round_up(size)));
auto rounded_size = TRY(Memory::page_round_up(size));
auto vmobject = TRY(Memory::AnonymousVMObject::try_create_physically_contiguous_with_size(rounded_size));
return TRY(MM.allocate_kernel_region_with_vmobject(move(vmobject), vmobject->size(), name, Memory::Region::Access::Write));
}

2
Kernel/Devices/KCOVInstance.cpp
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@ -20,7 +20,7 @@ ErrorOr<void> KCOVInstance::buffer_allocate(size_t buffer_size_in_entries)
// first entry contains index of last PC
m_buffer_size_in_entries = buffer_size_in_entries - 1;
m_buffer_size_in_bytes = Memory::page_round_up(buffer_size_in_entries * KCOV_ENTRY_SIZE);
m_buffer_size_in_bytes = TRY(Memory::page_round_up(buffer_size_in_entries * KCOV_ENTRY_SIZE));
// one single vmobject is representing the buffer
// - we allocate one kernel region using that vmobject