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Kernel: Fail with ENOMEM if there's insufficient VM for a SharedBuffer

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This commit is contained in:
Andreas Kling 2020-02-24 13:33:10 +01:00
parent 30a8991dbf
commit cb9d9846e0
1 changed files with 2 additions and 0 deletions
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2
Kernel/SharedBuffer.cpp
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@ -88,6 +88,8 @@ void* SharedBuffer::ref_for_process_and_get_address(Process& process)
if (ref.pid == process.pid()) {
if (!ref.region) {
auto* region = process.allocate_region_with_vmobject(VirtualAddress(), size(), m_vmobject, 0, "SharedBuffer", PROT_READ | (m_writable ? PROT_WRITE : 0));
if (!region)
return (void*)-ENOMEM;
ref.region = region->make_weak_ptr();
ref.region->set_shared(true);
}