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Subject[PATCH] USB: ehci fixups
Date
From
[PATCH] USB: ehci fixups

Rename the EHCI "reset" routine so it better matches what it does (setup);
and move the one-time data structure setup earlier, before doing anything
that implicitly relies on it having been completed already.

From: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
commit 8926bfa7462d4c3f8b05cca929e0c4bcde93ae38
tree 52f6841e035827751efee6b4616f84606db70663
parent 8de98402652c01839ae321be6cb3054cf5735d83
author David Brownell <david-b@pacbell.net> Mon, 28 Nov 2005 08:40:38 -0800
committer Greg Kroah-Hartman <gregkh@suse.de> Tue, 29 Nov 2005 21:39:23 -0800
drivers/usb/host/ehci-pci.c | 19 ++++++++++++-------
1 files changed, 12 insertions(+), 7 deletions(-)
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 14fff57..13f73a8 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -121,8 +121,8 @@ static int ehci_pci_reinit(struct ehci_h
return 0;
}

-/* called by khubd or root hub (re)init threads; leaves HC in halt state */
-static int ehci_pci_reset(struct usb_hcd *hcd)
+/* called during probe() after chip reset completes */
+static int ehci_pci_setup(struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
@@ -141,6 +141,11 @@ static int ehci_pci_reset(struct usb_hcd
if (retval)
return retval;

+ /* data structure init */
+ retval = ehci_init(hcd);
+ if (retval)
+ return retval;
+
/* NOTE: only the parts below this line are PCI-specific */

switch (pdev->vendor) {
@@ -154,7 +159,8 @@ static int ehci_pci_reset(struct usb_hcd
/* AMD8111 EHCI doesn't work, according to AMD errata */
if (pdev->device == 0x7463) {
ehci_info(ehci, "ignoring AMD8111 (errata)\n");
- return -EIO;
+ retval = -EIO;
+ goto done;
}
break;
case PCI_VENDOR_ID_NVIDIA:
@@ -207,9 +213,8 @@ static int ehci_pci_reset(struct usb_hcd
/* REVISIT: per-port wake capability (PCI 0x62) currently unused */

retval = ehci_pci_reinit(ehci, pdev);
-
- /* finish init */
- return ehci_init(hcd);
+done:
+ return retval;
}

/*-------------------------------------------------------------------------*/
@@ -344,7 +349,7 @@ static const struct hc_driver ehci_pci_h
/*
* basic lifecycle operations
*/
- .reset = ehci_pci_reset,
+ .reset = ehci_pci_setup,
.start = ehci_run,
#ifdef CONFIG_PM
.suspend = ehci_pci_suspend,
-
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