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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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7
Kernel/Syscalls/get_stack_bounds.cpp
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@ -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);
}
}