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Kernel: Use TRY() in Graphics::VirtIOGPU::FrameBufferDevice

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This commit is contained in:
Andreas Kling 2021-09-06 02:11:46 +02:00
parent 17a12c8a30
commit f4a6b60570
Notes: sideshowbarker 2024-07-18 04:38:38 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/f4a6b605708
1 changed files with 5 additions and 11 deletions
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16
Kernel/Graphics/VirtIOGPU/FrameBufferDevice.cpp
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@ -253,28 +253,22 @@ KResultOr<Memory::Region*> FrameBufferDevice::mmap(Process& process, FileDescrip
RefPtr<Memory::VMObject> vmobject;
if (m_are_writes_active) {
auto maybe_vmobject = m_framebuffer->vmobject().try_clone();
if (maybe_vmobject.is_error())
return maybe_vmobject.error();
vmobject = maybe_vmobject.release_value();
vmobject = TRY(m_framebuffer->vmobject().try_clone());
} else {
vmobject = m_framebuffer_sink_vmobject;
if (vmobject.is_null())
return ENOMEM;
}
auto result = process.address_space().allocate_region_with_vmobject(
m_userspace_mmap_region = TRY(process.address_space().allocate_region_with_vmobject(
range,
vmobject.release_nonnull(),
0,
"VirtIOGPU Framebuffer",
prot,
shared);
if (result.is_error())
return result;
m_userspace_mmap_region = result.value();
return result;
shared));
return m_userspace_mmap_region.unsafe_ptr();
}
void FrameBufferDevice::deactivate_writes()