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Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T>

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We now use AK::Error and AK::ErrorOr<T> in both kernel and userspace!
This was a slightly tedious refactoring that took a long time, so it's
not unlikely that some bugs crept in.

Nevertheless, it does pass basic functionality testing, and it's just
real nice to finally see the same pattern in all contexts. :^)
This commit is contained in:
Andreas Kling 2021-11-08 00:51:39 +01:00
parent 7ee10c6926
commit 79fa9765ca
262 changed files with 2415 additions and 2600 deletions
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11
Kernel/Syscalls/perf_event.cpp
View file

@ -9,21 +9,22 @@
namespace Kernel {
KResultOr<FlatPtr> Process::sys$perf_event(int type, FlatPtr arg1, FlatPtr arg2)
ErrorOr<FlatPtr> Process::sys$perf_event(int type, FlatPtr arg1, FlatPtr arg2)
{
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
auto* events_buffer = current_perf_events_buffer();
if (!events_buffer)
return KSuccess;
return events_buffer->append(type, arg1, arg2, nullptr);
return 0;
TRY(events_buffer->append(type, arg1, arg2, nullptr));
return 0;
}
KResultOr<FlatPtr> Process::sys$perf_register_string(Userspace<char const*> user_string, size_t user_string_length)
ErrorOr<FlatPtr> Process::sys$perf_register_string(Userspace<char const*> user_string, size_t user_string_length)
{
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
auto* events_buffer = current_perf_events_buffer();
if (!events_buffer)
return KSuccess;
return 0;
auto string = TRY(try_copy_kstring_from_user(user_string, user_string_length));
return events_buffer->register_string(move(string));