Input: serio_raw - really signal HUP upon disconnect



Commit 8c1c10d5 attempted to signal
POLLHUP | POLLERR condition when polling disconnected device,
unfortunately it did not do it quite correctly.

Reported-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

parent d89c9bcb

drivers/input/serio/serio_raw.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -237,9 +237,9 @@ static unsigned int serio_raw_poll(struct file file, poll_table wait)

		mask = serio_raw->dead ? POLLHUP \| POLLERR : POLLOUT \| POLLWRNORM;
		if (serio_raw->head != serio_raw->tail)
		return POLLIN \| POLLRDNORM;
		mask \|= POLLIN \| POLLRDNORM;

		return 0;
		return mask;
		}

		static const struct file_operations serio_raw_fops = {