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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/futex.cpp
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@ -26,8 +26,7 @@ KResultOr<FlatPtr> Process::sys$futex(Userspace<const Syscall::SC_futex_params*>
{
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
Syscall::SC_futex_params params;
if (!copy_from_user(&params, user_params))
return EFAULT;
TRY(copy_from_user(&params, user_params));
Thread::BlockTimeout timeout;
u32 cmd = params.futex_op & FUTEX_CMD_MASK;