Commit 97e92306 authored May 17, 2016 by Keith Busch Committed by Bjorn Helgaas Jun 13, 2016

x86/PCI: VMD: Initialize list item in IRQ disable



Multiple calls to disable an IRQ would have caused the driver to
dereference a poisoned list item.  This re-initializes the list to allow
multiple requests to disable the IRQ.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by Jon Derrick: <jonathan.derrick@intel.com>

parent ca8a8fab

arch/x86/pci/vmd.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -135,6 +135,7 @@ static void vmd_irq_disable(struct irq_data *data)

		raw_spin_lock(&list_lock);
		list_del_rcu(&vmdirq->node);
		INIT_LIST_HEAD_RCU(&vmdirq->node);
		raw_spin_unlock(&list_lock);
		}