From: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Date: Mon, 7 Dec 2020 17:19:38 +0000 (+0000)
Subject: um: Monitor error events in IRQ controller
X-Git-Tag: v5.4.86~174
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1355bbe3a7172ead5eb974bf28da653e084e5762;p=thirdparty%2Fkernel%2Fstable.git

um: Monitor error events in IRQ controller

[ Upstream commit e3a01cbee9c5f2c6fc813dd6af007716e60257e7 ]

Ensure that file closes, connection closes, etc are propagated
as interrupts in the interrupt controller.

Fixes: ff6a17989c08 ("Epoll based IRQ controller")
Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c
index d508310ee5e1e..f1732c308c615 100644
--- a/arch/um/os-Linux/irq.c
+++ b/arch/um/os-Linux/irq.c
@@ -48,7 +48,7 @@ int os_epoll_triggered(int index, int events)
 int os_event_mask(int irq_type)
 {
 	if (irq_type == IRQ_READ)
-		return EPOLLIN | EPOLLPRI;
+		return EPOLLIN | EPOLLPRI | EPOLLERR | EPOLLHUP | EPOLLRDHUP;
 	if (irq_type == IRQ_WRITE)
 		return EPOLLOUT;
 	return 0;