From c5396b13660cc8e3c7a97ecba6c9b8b342ff1e31 Mon Sep 17 00:00:00 2001
From: Shaun Ruffell <sruffell@digium.com>
Date: Mon, 4 Apr 2011 16:25:03 +0000
Subject: [PATCH] wct4xxp: Add shutdown handler for kexec.

Makes the driver a little more kexec friendly when sharing an interrupt
line with another device.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9881 a0bf4364-ded3-4de4-8d8a-66a801d63aff
---
 drivers/dahdi/wct4xxp/base.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/dahdi/wct4xxp/base.c b/drivers/dahdi/wct4xxp/base.c
index 3d7c89b..923ed93 100644
--- a/drivers/dahdi/wct4xxp/base.c
+++ b/drivers/dahdi/wct4xxp/base.c
@@ -4971,10 +4971,21 @@ static DEFINE_PCI_DEVICE_TABLE(t4_pci_tbl) =
 	{ 0, }
 };
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 12)
+static void _t4_shutdown(struct pci_dev *pdev)
+{
+	struct t4 *wc = pci_get_drvdata(pdev);
+	t4_hardware_stop(wc);
+}
+#endif
+
 static struct pci_driver t4_driver = {
 	.name = "wct4xxp",
 	.probe = t4_init_one,
 	.remove = __devexit_p(t4_remove_one),
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 12)
+	.shutdown = _t4_shutdown,
+#endif
 	.id_table = t4_pci_tbl,
 };