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

This makes EFAULT propagation flow much more naturally. :^)
This commit is contained in:
Andreas Kling 2021-09-05 17:38:37 +02:00
commit 48a0b31c47
Notes: sideshowbarker 2024-07-18 04:41:52 +09:00
57 changed files with 318 additions and 551 deletions

View file

@ -21,11 +21,8 @@ KResultOr<FlatPtr> Process::sys$get_stack_bounds(Userspace<FlatPtr*> user_stack_
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;
if (!copy_to_user(user_stack_size, &stack_size))
return EFAULT;
return 0;
TRY(copy_to_user(user_stack_base, &stack_base));
return copy_to_user(user_stack_size, &stack_size);
}
}