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path: root/drivers/usb/host/ohci-hub.c
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Diffstat (limited to 'drivers/usb/host/ohci-hub.c')
-rw-r--r--drivers/usb/host/ohci-hub.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
index f9748b67e5e7..216c9c9d4d6d 100644
--- a/drivers/usb/host/ohci-hub.c
+++ b/drivers/usb/host/ohci-hub.c
@@ -555,7 +555,7 @@ static void start_hnp(struct ohci_hcd *ohci);
555#define tick_before(t1,t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0) 555#define tick_before(t1,t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0)
556 556
557/* called from some task, normally khubd */ 557/* called from some task, normally khubd */
558static inline void root_port_reset (struct ohci_hcd *ohci, unsigned port) 558static inline int root_port_reset (struct ohci_hcd *ohci, unsigned port)
559{ 559{
560 __hc32 __iomem *portstat = &ohci->regs->roothub.portstatus [port]; 560 __hc32 __iomem *portstat = &ohci->regs->roothub.portstatus [port];
561 u32 temp; 561 u32 temp;
@@ -570,6 +570,9 @@ static inline void root_port_reset (struct ohci_hcd *ohci, unsigned port)
570 /* spin until any current reset finishes */ 570 /* spin until any current reset finishes */
571 for (;;) { 571 for (;;) {
572 temp = ohci_readl (ohci, portstat); 572 temp = ohci_readl (ohci, portstat);
573 /* handle e.g. CardBus eject */
574 if (temp == ~(u32)0)
575 return -ESHUTDOWN;
573 if (!(temp & RH_PS_PRS)) 576 if (!(temp & RH_PS_PRS))
574 break; 577 break;
575 udelay (500); 578 udelay (500);
@@ -586,6 +589,8 @@ static inline void root_port_reset (struct ohci_hcd *ohci, unsigned port)
586 now = ohci_readl(ohci, &ohci->regs->fmnumber); 589 now = ohci_readl(ohci, &ohci->regs->fmnumber);
587 } while (tick_before(now, reset_done)); 590 } while (tick_before(now, reset_done));
588 /* caller synchronizes using PRSC */ 591 /* caller synchronizes using PRSC */
592
593 return 0;
589} 594}
590 595
591static int ohci_hub_control ( 596static int ohci_hub_control (
@@ -702,7 +707,7 @@ static int ohci_hub_control (
702 &ohci->regs->roothub.portstatus [wIndex]); 707 &ohci->regs->roothub.portstatus [wIndex]);
703 break; 708 break;
704 case USB_PORT_FEAT_RESET: 709 case USB_PORT_FEAT_RESET:
705 root_port_reset (ohci, wIndex); 710 retval = root_port_reset (ohci, wIndex);
706 break; 711 break;
707 default: 712 default:
708 goto error; 713 goto error;