PCI: Make pci_error_handlers const

Since pci_error_handlers is just a function table make it const.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Linas Vepstas <linasvepstas@gmail.com>
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 5faa831..f0f2b80 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -596,7 +596,7 @@
 	int  (*resume_early) (struct pci_dev *dev);
 	int  (*resume) (struct pci_dev *dev);	                /* Device woken up */
 	void (*shutdown) (struct pci_dev *dev);
-	struct pci_error_handlers *err_handler;
+	const struct pci_error_handlers *err_handler;
 	struct device_driver	driver;
 	struct pci_dynids dynids;
 };
diff --git a/include/linux/pcieport_if.h b/include/linux/pcieport_if.h
index 6775532..e6f91b1 100644
--- a/include/linux/pcieport_if.h
+++ b/include/linux/pcieport_if.h
@@ -49,7 +49,7 @@
 	int (*resume) (struct pcie_device *dev);
 
 	/* Service Error Recovery Handler */
-	struct pci_error_handlers *err_handler;
+	const struct pci_error_handlers *err_handler;
 
 	/* Link Reset Capability - AER service driver specific */
 	pci_ers_result_t (*reset_link) (struct pci_dev *dev);