intel-iommu: dmar_set_interrupt return error value
dmar_set_interrupt feigns success when arch_setup_dmar_msi
fails, return error value.
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index faf77a0..f23460a 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -1088,7 +1088,7 @@
set_irq_data(irq, NULL);
iommu->irq = 0;
destroy_irq(irq);
- return 0;
+ return ret;
}
ret = request_irq(irq, dmar_fault, 0, iommu->name, iommu);