[PATCH v1 03/49] USB: devio: prepare for enabling irq in complete()

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Complete() will be run with interrupt enabled, so change to
spin_lock_irqsave().

Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx>
---
 drivers/usb/core/devio.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 737e3c1..826289c 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -495,8 +495,9 @@ static void async_completed(struct urb *urb)
 	u32 secid = 0;
 	const struct cred *cred = NULL;
 	int signr;
+	unsigned long flags;
 
-	spin_lock(&ps->lock);
+	spin_lock_irqsave(&ps->lock, flags);
 	list_move_tail(&as->asynclist, &ps->async_completed);
 	as->status = urb->status;
 	signr = as->signr;
@@ -518,7 +519,7 @@ static void async_completed(struct urb *urb)
 	if (as->status < 0 && as->bulk_addr && as->status != -ECONNRESET &&
 			as->status != -ENOENT)
 		cancel_bulk_urbs(ps, as->bulk_addr);
-	spin_unlock(&ps->lock);
+	spin_unlock_irqrestore(&ps->lock, flags);
 
 	if (signr) {
 		kill_pid_info_as_cred(sinfo.si_signo, &sinfo, pid, cred, secid);
-- 
1.7.9.5

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