xHCI: fix port U3 status check condition
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@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 0be788c..cddcdcca 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -664,7 +664,7 @@
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;