Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (58 commits)
  tty: split the lock up a bit further
  tty: Move the leader test in disassociate
  tty: Push the bkl down a bit in the hangup code
  tty: Push the lock down further into the ldisc code
  tty: push the BKL down into the handlers a bit
  tty: moxa: split open lock
  tty: moxa: Kill the use of lock_kernel
  tty: moxa: Fix modem op locking
  tty: moxa: Kill off the throttle method
  tty: moxa: Locking clean up
  tty: moxa: rework the locking a bit
  tty: moxa: Use more tty_port ops
  tty: isicom: fix deadlock on shutdown
  tty: mxser: Use the new locking rules to fix setserial properly
  tty: mxser: use the tty_port_open method
  tty: isicom: sort out the board init logic
  tty: isicom: switch to the new tty_port_open helper
  tty: tty_port: Add a kref object to the tty port
  tty: istallion: tty port open/close methods
  tty: stallion: Convert to the tty_port_open/close methods
  ...

1 files changed, 47 insertions, 1 deletions

diff --git a/drivers/serial/jsm/jsm_driver.c b/drivers/serial/jsm/jsm_driver.c
index b3604aa322a..108c3e0471f 100644
--- a/drivers/serial/jsm/jsm_driver.c
+++ b/drivers/serial/jsm/jsm_driver.c
@@ -48,6 +48,17 @@ struct uart_driver jsm_uart_driver = {
 	.nr		= NR_PORTS,
 };
 
+static pci_ers_result_t jsm_io_error_detected(struct pci_dev *pdev,
+                                       pci_channel_state_t state);
+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 = {
+	.error_detected = jsm_io_error_detected,
+	.slot_reset = jsm_io_slot_reset,
+	.resume = jsm_io_resume,
+};
+
 int jsm_debug;
 module_param(jsm_debug, int, 0);
 MODULE_PARM_DESC(jsm_debug, "Driver debugging level");
@@ -123,7 +134,7 @@ static int __devinit jsm_probe_one(struct pci_dev *pdev, const struct pci_device
 	}
 
 	rc = request_irq(brd->irq, brd->bd_ops->intr,
-			IRQF_DISABLED|IRQF_SHARED, "JSM", brd);
+			IRQF_SHARED, "JSM", brd);
 	if (rc) {
 		printk(KERN_WARNING "Failed to hook IRQ %d\n",brd->irq);
 		goto out_iounmap;
@@ -164,6 +175,7 @@ static int __devinit jsm_probe_one(struct pci_dev *pdev, const struct pci_device
 	}
 
 	pci_set_drvdata(pdev, brd);
+	pci_save_state(pdev);
 
 	return 0;
  out_free_irq:
@@ -222,8 +234,42 @@ static struct pci_driver jsm_driver = {
 	.id_table	= jsm_pci_tbl,
 	.probe		= jsm_probe_one,
 	.remove		= __devexit_p(jsm_remove_one),
+	.err_handler    = &jsm_err_handler,
 };
 
+static pci_ers_result_t jsm_io_error_detected(struct pci_dev *pdev,
+					pci_channel_state_t state)
+{
+	struct jsm_board *brd = pci_get_drvdata(pdev);
+
+	jsm_remove_uart_port(brd);
+
+	return PCI_ERS_RESULT_NEED_RESET;
+}
+
+static pci_ers_result_t jsm_io_slot_reset(struct pci_dev *pdev)
+{
+	int rc;
+
+	rc = pci_enable_device(pdev);
+
+	if (rc)
+		return PCI_ERS_RESULT_DISCONNECT;
+
+	pci_set_master(pdev);
+
+	return PCI_ERS_RESULT_RECOVERED;
+}
+
+static void jsm_io_resume(struct pci_dev *pdev)
+{
+	struct jsm_board *brd = pci_get_drvdata(pdev);
+
+	pci_restore_state(pdev);
+
+	jsm_uart_port_init(brd);
+}
+
 static int __init jsm_init_module(void)
 {
 	int rc;