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Message-Id: <20110928220127.553780293@clark.kroah.org>
Date: Wed, 28 Sep 2011 14:59:46 -0700
From: Greg KH <gregkh@...e.de>
To: linux-kernel@...r.kernel.org, stable@...nel.org
Cc: stable-review@...nel.org, torvalds@...ux-foundation.org,
akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
Andiry Xu <andiry.xu@....com>,
Sarah Sharp <sarah.a.sharp@...ux.intel.com>
Subject: [022/244] xHCI: fix port U3 status check condition
3.0-stable review patch. If anyone has any objections, please let us know.
------------------
From: Andiry Xu <andiry.xu@....com>
commit 5ac04bf190e6f8b17238aef179ebd7f2bdfec919 upstream.
Fix the port U3 status check when Clear PORT_SUSPEND Feature.
The port status should be masked with PORT_PLS_MASK to check if it's in
U3 state.
This should be backported to kernels as old as 2.6.37.
Signed-off-by: Andiry Xu <andiry.xu@....com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@...ux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
drivers/usb/host/xhci-hub.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -664,7 +664,7 @@ int xhci_hub_control(struct usb_hcd *hcd
xhci_dbg(xhci, "PORTSC %04x\n", temp);
if (temp & PORT_RESET)
goto error;
- if (temp & XDEV_U3) {
+ if ((temp & PORT_PLS_MASK) == XDEV_U3) {
if ((temp & PORT_PE) == 0)
goto error;
--
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