From a515958d6f77fdff1a40f8b08a9a95ac223c5d48 Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat, 9 Jun 2007 19:31:14 +0200
Subject: [PATCH] firewire: fix hang after card ejection
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Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
---
 drivers/firewire/fw-ohci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c
index 0d08bf9b78c2..b72a5c1f9e69 100644
--- a/drivers/firewire/fw-ohci.c
+++ b/drivers/firewire/fw-ohci.c
@@ -1001,7 +1001,7 @@ static irqreturn_t irq_handler(int irq, void *data)
 
 	event = reg_read(ohci, OHCI1394_IntEventClear);
 
-	if (!event)
+	if (!event || !~event)
 		return IRQ_NONE;
 
 	reg_write(ohci, OHCI1394_IntEventClear, event);
-- 
2.20.1