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xHCI: release spinlock when setup interrupt 

Jiri Slaby reports spinlock is held while calling kmalloc(GFP_KERNEL)
and request_irq() in xhci_resume().

Release the spinlock when setup interrupt.

Reported-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This commit is contained in:
Andiry Xu 2010-10-27 16:44:52 +08:00 committed by Sarah Sharp
parent 241b652f19
commit 74bb844af8
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/host/xhci.c
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@ -714,6 +714,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
return retval; return retval;
} }
spin_unlock_irq(&xhci->lock);
/* Re-setup MSI-X */ /* Re-setup MSI-X */
if (hcd->irq) if (hcd->irq)
free_irq(hcd->irq, hcd); free_irq(hcd->irq, hcd);
@ -736,6 +737,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
hcd->irq = pdev->irq; hcd->irq = pdev->irq;
} }
spin_lock_irq(&xhci->lock);
/* step 4: set Run/Stop bit */ /* step 4: set Run/Stop bit */
command = xhci_readl(xhci, &xhci->op_regs->command); command = xhci_readl(xhci, &xhci->op_regs->command);
command |= CMD_RUN; command |= CMD_RUN;