From: Oliver Neukum <oliver@neukum.org>
Date: Wed, 16 Dec 2009 18:43:59 +0000 (+0100)
Subject: USB: xhci: No GFP_KERNEL in block error handling
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=319c3ea451e19f72b578661e26fb33739af5ae1c;p=openwrt%2Fstaging%2Fblogic.git

USB: xhci: No GFP_KERNEL in block error handling

xhci_add_endpoint() is used in the reset path. It must
use GFP_NOIO to avoid a possible deadlock.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Acked-by: Sarah Sharp <sarah.a.sharp@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/host/xhci-hcd.c b/drivers/usb/host/xhci-hcd.c
index c8573f874ec4..4cb69e0af834 100644
--- a/drivers/usb/host/xhci-hcd.c
+++ b/drivers/usb/host/xhci-hcd.c
@@ -1007,7 +1007,7 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
 	 * for usb_set_interface() and usb_set_configuration() claim).
 	 */
 	if (xhci_endpoint_init(xhci, xhci->devs[udev->slot_id],
-				udev, ep, GFP_KERNEL) < 0) {
+				udev, ep, GFP_NOIO) < 0) {
 		dev_dbg(&udev->dev, "%s - could not initialize ep %#x\n",
 				__func__, ep->desc.bEndpointAddress);
 		return -ENOMEM;