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>
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 5d7d4e9..7c8d70f 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -714,6 +714,7 @@
return retval;
}
+ spin_unlock_irq(&xhci->lock);
/* Re-setup MSI-X */
if (hcd->irq)
free_irq(hcd->irq, hcd);
@@ -736,6 +737,7 @@
hcd->irq = pdev->irq;
}
+ spin_lock_irq(&xhci->lock);
/* step 4: set Run/Stop bit */
command = xhci_readl(xhci, &xhci->op_regs->command);
command |= CMD_RUN;