firewire: fix hang after card ejection

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>

1 files changed, 1 insertions, 1 deletions

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);