[PATCH 4/4 v6] xHCI: Isoc urb enqueue

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>From 889b29447bb05fbb869899a12b0a2c25281fae84 Mon Sep 17 00:00:00 2001
From: Andiry Xu <andiry.xu@xxxxxxx>
Date: Tue, 9 Mar 2010 19:00:29 +0800
Subject: [PATCH 4/4] xHCI: Isoc urb enqueue

Enable isochronous urb enqueue.

Signed-off-by: Andiry Xu <andiry.xu@xxxxxxx>
---
 drivers/usb/host/xhci.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 171ebf1..b30e4b3 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -772,7 +772,12 @@ int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags)
 				slot_id, ep_index);
 		spin_unlock_irqrestore(&xhci->lock, flags);
 	} else {
-		ret = -EINVAL;
+		spin_lock_irqsave(&xhci->lock, flags);
+		if (xhci->xhc_state & XHCI_STATE_DYING)
+			goto dying;
+		ret = xhci_queue_isoc_tx_prepare(xhci, GFP_ATOMIC, urb,
+				slot_id, ep_index);
+		spin_unlock_irqrestore(&xhci->lock, flags);
 	}
 exit:
 	return ret;
-- 
1.7.0.4



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