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 d508310..f1732c3 100644 (file)
--- 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;