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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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3
Kernel/Syscalls/chown.cpp
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@ -24,8 +24,7 @@ KResultOr<FlatPtr> Process::sys$chown(Userspace<const Syscall::SC_chown_params*>
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
REQUIRE_PROMISE(chown);
Syscall::SC_chown_params params;
if (!copy_from_user(&params, user_params))
return EFAULT;
TRY(copy_from_user(&params, user_params));
auto path = TRY(get_syscall_path_argument(params.path));
return VirtualFileSystem::the().chown(path->view(), params.uid, params.gid, current_directory());
}