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Kernel: Make all syscall functions return KResultOr<T>

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This makes it a lot easier to return errors since we no longer have to
worry about negating EFOO errors and can just return them flat.
This commit is contained in:
Andreas Kling 2021-03-01 13:49:16 +01:00
parent 9af1e1a3bf
commit ac71775de5
70 changed files with 747 additions and 742 deletions
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6
Kernel/Syscalls/get_stack_bounds.cpp
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@ -30,7 +30,7 @@
namespace Kernel {
int Process::sys$get_stack_bounds(FlatPtr* user_stack_base, size_t* user_stack_size)
KResultOr<int> Process::sys$get_stack_bounds(FlatPtr* user_stack_base, size_t* user_stack_size)
{
FlatPtr stack_pointer = Thread::current()->get_register_dump_from_stack().userspace_esp;
auto* stack_region = space().find_region_containing(Range { VirtualAddress(stack_pointer), 1 });
@ -41,9 +41,9 @@ int Process::sys$get_stack_bounds(FlatPtr* user_stack_base, size_t* user_stack_s
FlatPtr stack_base = stack_region->range().base().get();
size_t stack_size = stack_region->size();
if (!copy_to_user(user_stack_base, &stack_base))
return -EFAULT;
return EFAULT;
if (!copy_to_user(user_stack_size, &stack_size))
return -EFAULT;
return EFAULT;
return 0;
}