EHCI, UHCI and OHCI USB host drivers are not consistent when returining error values
from their _suspend functions, in case that the device is not in suspended state.
This could confuse users, so let's all three of them return -EBUSY.

Signed-off-by: Jiri Kosina <EMAIL_REMOVED>

Submitted to akpm/linux-usb/maintainers on 19.9.2006

--- linux-2.6.18-rc6-mm2.orig/drivers/usb/host/ehci-pci.c	2006-09-14 16:20:48.000000000 +0200
+++ linux-2.6.18-rc6-mm2/drivers/usb/host/ehci-pci.c	2006-09-19 03:20:22.000000000 +0200
@@ -232,7 +232,7 @@ static int ehci_pci_suspend(struct usb_h
 	 */
 	spin_lock_irqsave (&ehci->lock, flags);
 	if (hcd->state != HC_STATE_SUSPENDED) {
-		rc = -EINVAL;
+		rc = -EBUSY;
 		goto bail;
 	}
 	writel (0, &ehci->regs->intr_enable);
--- linux-2.6.18-rc6-mm2.orig/drivers/usb/host/ohci-pci.c	2006-09-14 16:20:48.000000000 +0200
+++ linux-2.6.18-rc6-mm2/drivers/usb/host/ohci-pci.c	2006-09-19 03:36:35.000000000 +0200
@@ -130,7 +130,7 @@ static int ohci_pci_suspend (struct usb_
 	 */
 	spin_lock_irqsave (&ohci->lock, flags);
 	if (hcd->state != HC_STATE_SUSPENDED) {
-		rc = -EINVAL;
+		rc = -EBUSY;
 		goto bail;
 	}
 	ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);