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Kernel+LibC: Turn errno codes into a strongly typed enum

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..and allow implicit creation of KResult and KResultOr from ErrnoCode.
This means that kernel functions that return those types can finally
do "return EINVAL;" and it will just work.

There's a handful of functions that still deal with signed integers
that should be converted to return KResults.
This commit is contained in:
Andreas Kling 2021-01-20 23:11:17 +01:00
parent e279b45aed
commit 19d3f8cab7
48 changed files with 591 additions and 506 deletions
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4
Kernel/Devices/MBVGADevice.cpp
View file

@ -55,12 +55,12 @@ KResultOr<Region*> MBVGADevice::mmap(Process& process, FileDescription&, Virtual
{
REQUIRE_PROMISE(video);
if (!shared)
return KResult(-ENODEV);
return ENODEV;
ASSERT(offset == 0);
ASSERT(size == framebuffer_size_in_bytes());
auto vmobject = AnonymousVMObject::create_for_physical_range(m_framebuffer_address, framebuffer_size_in_bytes());
if (!vmobject)
return KResult(-ENOMEM);
return ENOMEM;
return process.allocate_region_with_vmobject(
preferred_vaddr,
framebuffer_size_in_bytes(),