Commit c801aff1 authored Jul 18, 2019 by Fabian Henneke Committed by Jiri Kosina Aug 05, 2019

hiddev: Return EPOLLOUT from hiddev_poll



Always return EPOLLOUT from hiddev_poll when a device is connected.
This is safe since hiddev_write always fails and improves compatibility
with tools like socat.

Signed-off-by: Fabian Henneke <fabian@henneke.me>
In-reply-to: <nycvar.YFH.7.76.1907171333160.5899@cbobk.fhfr.pm>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

parent 378b8037

drivers/hid/usbhid/hiddev.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -416,7 +416,7 @@ static __poll_t hiddev_poll(struct file file, poll_table wait)

		poll_wait(file, &list->hiddev->wait, wait);
		if (list->head != list->tail)
		return EPOLLIN \| EPOLLRDNORM;
		return EPOLLIN \| EPOLLRDNORM \| EPOLLOUT;
		if (!list->hiddev->exist)
		return EPOLLERR \| EPOLLHUP;
		return 0;

Admin message