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Kernel: Make KString factories return KResultOr + use TRY() everywhere

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There are a number of places that don't have an error propagation path
right now, so I've added FIXME's about that.
This commit is contained in:
Andreas Kling 2021-09-06 19:24:54 +02:00
parent 69b9b2888c
commit 56a2594de7
21 changed files with 100 additions and 122 deletions
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14
Kernel/Memory/Region.cpp
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@ -60,8 +60,13 @@ KResultOr<NonnullOwnPtr<Region>> Region::try_clone()
VERIFY(vmobject().is_shared_inode());
// Create a new region backed by the same VMObject.
OwnPtr<KString> region_name;
if (m_name)
region_name = TRY(m_name->try_clone());
auto region = TRY(Region::try_create_user_accessible(
m_range, m_vmobject, m_offset_in_vmobject, m_name ? m_name->try_clone() : OwnPtr<KString> {}, access(), m_cacheable ? Cacheable::Yes : Cacheable::No, m_shared));
m_range, m_vmobject, m_offset_in_vmobject, move(region_name), access(), m_cacheable ? Cacheable::Yes : Cacheable::No, m_shared));
region->set_mmap(m_mmap);
region->set_shared(m_shared);
region->set_syscall_region(is_syscall_region());
@ -75,8 +80,13 @@ KResultOr<NonnullOwnPtr<Region>> Region::try_clone()
// Set up a COW region. The parent (this) region becomes COW as well!
remap();
OwnPtr<KString> clone_region_name;
if (m_name)
clone_region_name = TRY(m_name->try_clone());
auto clone_region = TRY(Region::try_create_user_accessible(
m_range, vmobject_clone, m_offset_in_vmobject, m_name ? m_name->try_clone() : OwnPtr<KString> {}, access(), m_cacheable ? Cacheable::Yes : Cacheable::No, m_shared));
m_range, vmobject_clone, m_offset_in_vmobject, move(clone_region_name), access(), m_cacheable ? Cacheable::Yes : Cacheable::No, m_shared));
if (m_stack) {
VERIFY(is_readable());