make drivers with pci error handlers const

Covers the rest of the uses of pci error handler.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/drivers/tty/serial/jsm/jsm_driver.c b/drivers/tty/serial/jsm/jsm_driver.c
index 7545fe1..5ab3c3b 100644
--- a/drivers/tty/serial/jsm/jsm_driver.c
+++ b/drivers/tty/serial/jsm/jsm_driver.c
@@ -54,7 +54,7 @@
 static pci_ers_result_t jsm_io_slot_reset(struct pci_dev *pdev);
 static void jsm_io_resume(struct pci_dev *pdev);
 
-static struct pci_error_handlers jsm_err_handler = {
+static const struct pci_error_handlers jsm_err_handler = {
 	.error_detected = jsm_io_error_detected,
 	.slot_reset = jsm_io_slot_reset,
 	.resume = jsm_io_resume,