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USB: xhci: Clean up xhci_irq() function.

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Drop spinlock in xhci_irq() error path.
This fixes the issue reported by Oliver Neukum on this thread:
	http://marc.info/?l=linux-usb&m=124090924401444&w=2

Remove unnecessary register read reported by Viral Mehta:
	http://marc.info/?l=linux-usb&m=124091326007398&w=2

Reported-by: Oliver Neukum <[email protected]>
Reported-by: Viral Mehta <[email protected]>
Signed-off-by: Sarah Sharp <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Sarah Sharp 2009-04-29 19:05:40 -07:00 • committed by Greg Kroah-Hartman
commit c96a2b81f3
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/host/xhci-hcd.c
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@ -276,11 +276,11 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd)
return IRQ_NONE;
}
temp = xhci_readl(xhci, &xhci->op_regs->status);
if (temp & STS_FATAL) {
xhci_warn(xhci, "WARNING: Host System Error\n");
xhci_halt(xhci);
xhci_to_hcd(xhci)->state = HC_STATE_HALT;
spin_unlock(&xhci->lock);
return -ESHUTDOWN;
}