From 787f4e5adaabba01becd646818dbace2d7e6b386 Mon Sep 17 00:00:00 2001
From: Andiry Xu <andiry.xu@amd.com>
Date: Thu, 22 Jul 2010 15:23:52 -0700
Subject: [PATCH] USB: xHCI: Isoc urb enqueue
Enable isochronous urb enqueue.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/usb/host/xhci.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 295a0a2063a6..89ac48534099 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -897,7 +897,12 @@ 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;
--
2.20.1