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Kernel: Make copy_{from,to}_user() return KResult and use TRY()

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This makes EFAULT propagation flow much more naturally. :^)
This commit is contained in:
Andreas Kling
2021-09-05 17:38:37 +02:00
parent 9903f5c6ef
commit 48a0b31c47
57 changed files with 318 additions and 551 deletions
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5
Kernel/Thread.cpp
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@@ -802,10 +802,11 @@ bool Thread::has_signal_handler(u8 signal) const
return !action.handler_or_sigaction.is_null();
}
static bool push_value_on_user_stack(FlatPtr& stack, FlatPtr data)
static void push_value_on_user_stack(FlatPtr& stack, FlatPtr data)
{
stack -= sizeof(FlatPtr);
return copy_to_user((FlatPtr*)stack, &data);
auto result = copy_to_user((FlatPtr*)stack, &data);
VERIFY(result.is_success());
}
void Thread::resume_from_stopped()