linux-master/io_uring/waitid.c

31 	struct siginfo __user *infop;
48 	struct compat_siginfo __user *infop;
51 	infop = (struct compat_siginfo __user *) iw->infop;
53 	if (!user_write_access_begin(infop, sizeof(*infop)))
56 	unsafe_put_user(signo, &infop->si_signo, Efault);
57 	unsafe_put_user(0, &infop->si_errno, Efault);
58 	unsafe_put_user(iw->info.cause, &infop->si_code, Efault);
59 	unsafe_put_user(iw->info.pid, &infop->si_pid, Efault);
60 	unsafe_put_user(iw->info.uid, &infop->si_uid, Efault);
61 	unsafe_put_user(iw->info.status, &infop->si_status, Efault);
77 	if (!iw->infop)
85 	if (!user_write_access_begin(iw->infop, sizeof(*iw->infop)))
88 	unsafe_put_user(signo, &iw->infop->si_signo, Efault);
89 	unsafe_put_user(0, &iw->infop->si_errno, Efault);
90 	unsafe_put_user(iw->info.cause, &iw->infop->si_code, Efault);
91 	unsafe_put_user(iw->info.pid, &iw->infop->si_pid, Efault);
92 	unsafe_put_user(iw->info.uid, &iw->infop->si_uid, Efault);
93 	unsafe_put_user(iw->info.status, &iw->infop->si_status, Efault);
295 	iw->infop = u64_to_user_ptr(READ_ONCE(sqe->addr2));