[PATCH 12/12] usb: use IRQ watching

[Tejun Heo]

Ask IRQ subsystem to watch HCD IRQ line after initialization.  This at
least keeps USB ports which are occupied on initialization working and
eases bug reporting and debugging.

Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
---
 drivers/usb/core/hcd.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 12742f1..383875f 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2270,6 +2270,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
 					"request interrupt %d failed\n", irqnum);
 			goto err_request_irq;
 		}
+		watch_irq(irqnum, hcd);
 		hcd->irq = irqnum;
 		dev_info(hcd->self.controller, "irq %d, %s 0x%08llx\n", irqnum,
 				(hcd->driver->flags & HCD_MEMORY) ?
-- 
1.6.4.2

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