From: Alan Stern <[EMAIL PROTECTED]>
This patch (as895) fixes up a loose end in the port-handover code for
the USB-Persist facility. A special case occurs when a high-speed
device is attached to a port which the user has designated to run at
full-speed only; the port must be disabled before the handover can
take place.
Signed-off-by: Alan Stern <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
drivers/usb/host/ehci-hub.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 3e80de7..27291f5 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -60,11 +60,13 @@ static void ehci_handover_companion_ports(struct ehci_hcd
*ehci)
while (port--) {
if (test_bit(port, &ehci->owned_ports)) {
reg = &ehci->regs->port_status[port];
- status = ehci_readl(ehci, reg);
+ status = ehci_readl(ehci, reg) & ~PORT_RWC_BITS;
/* Port already owned by companion? */
if (status & PORT_OWNER)
clear_bit(port, &ehci->owned_ports);
+ else if (test_bit(port, &ehci->companion_ports))
+ ehci_writel(ehci, status & ~PORT_PE, reg);
else
ehci_hub_control(hcd, SetPortFeature,
USB_PORT_FEAT_RESET, port + 1,
--
1.5.2.2
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