[PATCH] PCI: portdrv: fix irq initialization on FSL pcie host controller

[Lei Xu]

Root complex ports for Freescale PCIe host controller only receive
interrupts, so if there is no irq setting for RC, it should not return
error, otherwise it may result the PCIe host controller is disabled.

Signed-off-by: Lei Xu <B33228 at freescale.com>
---
 drivers/pci/pcie/portdrv_core.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index 595654a..95e64c8 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -209,7 +209,10 @@ static int init_service_irqs(struct pci_dev *dev, int *irqs, int mask)
 		irqs[i] = irq;
 	irqs[PCIE_PORT_SERVICE_VC_SHIFT] = -1;
 
-	if (irq < 0)
+	/* Root complex ports for Freescale PCIe host controller only
+	 * receive interrupts, so if there is no irq setting for RC,
+	 * it should not return error. */
+	if ((irq < 0) && (dev->pcie_type != PCI_EXP_TYPE_ROOT_PORT))
 		return -ENODEV;
 	return 0;
 }
-- 
1.7.0.4