973 static int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds,  in do_sys_poll()  argument
996 		if (copy_from_user(walk->entries, ufds + nfds-todo,  in do_sys_poll()
1017 	if (!user_write_access_begin(ufds, nfds * sizeof(*ufds)))  in do_sys_poll()
1024 		for (j = walk->len; j; fds++, ufds++, j--)  in do_sys_poll()
1025 			unsafe_put_user(fds->revents, &ufds->revents, Efault);  in do_sys_poll()
1048 	struct pollfd __user *ufds = restart_block->poll.ufds;  in do_restart_poll()  local
1059 	ret = do_sys_poll(ufds, nfds, to);  in do_restart_poll()
1067 SYSCALL_DEFINE3(poll, struct pollfd __user *, ufds, unsigned int, nfds,  in SYSCALL_DEFINE3()  argument
1079 	ret = do_sys_poll(ufds, nfds, to);  in SYSCALL_DEFINE3()
1085 		restart_block->poll.ufds = ufds;  in SYSCALL_DEFINE3()
1100 SYSCALL_DEFINE5(ppoll, struct pollfd __user *, ufds, unsigned int, nfds,  in SYSCALL_DEFINE5()  argument
1120 	ret = do_sys_poll(ufds, nfds, to);  in SYSCALL_DEFINE5()
1126 SYSCALL_DEFINE5(ppoll_time32, struct pollfd __user *, ufds, unsigned int, nfds,  in SYSCALL_DEFINE5()  argument
1146 	ret = do_sys_poll(ufds, nfds, to);  in SYSCALL_DEFINE5()
1398 COMPAT_SYSCALL_DEFINE5(ppoll_time32, struct pollfd __user *, ufds,  in COMPAT_SYSCALL_DEFINE5()  argument
1418 	ret = do_sys_poll(ufds, nfds, to);  in COMPAT_SYSCALL_DEFINE5()
1424 COMPAT_SYSCALL_DEFINE5(ppoll_time64, struct pollfd __user *, ufds,  in COMPAT_SYSCALL_DEFINE5()  argument
1444 	ret = do_sys_poll(ufds, nfds, to);  in COMPAT_SYSCALL_DEFINE5()