From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Mon, 18 Feb 2008 20:11:07 +0000 (+0100)
Subject: ieee1394: prevent device binding of raw1394, video1394, dv1394
X-Git-Tag: v2.6.26-rc1~1141^2~40
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=d2ace29fa44589da51fedc06a67b3f05301f3bfd;p=linux-2.6-omap-h63xx.git

ieee1394: prevent device binding of raw1394, video1394, dv1394

These drivers don't need to match any unit_directory type device.
They just need the id_table for module autoloading per module alias.

Not binding any of these drivers allows special-purpose drivers with
similar or same IDs to bind to devices.  This currently only benefits
out-of-tree drivers; on the other hand it is in no way detrimental to
in-tree drivers.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---

diff --git a/drivers/ieee1394/dv1394.c b/drivers/ieee1394/dv1394.c
index 65722117ab6..8c72f360f2d 100644
--- a/drivers/ieee1394/dv1394.c
+++ b/drivers/ieee1394/dv1394.c
@@ -2179,8 +2179,7 @@ static struct ieee1394_device_id dv1394_id_table[] = {
 MODULE_DEVICE_TABLE(ieee1394, dv1394_id_table);
 
 static struct hpsb_protocol_driver dv1394_driver = {
-	.name		= "dv1394",
-	.id_table	= dv1394_id_table,
+	.name = "dv1394",
 };
 
 
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index 511e4321c6b..70afa3786f3 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -701,7 +701,11 @@ static int nodemgr_bus_match(struct device * dev, struct device_driver * drv)
 		return 0;
 
 	driver = container_of(drv, struct hpsb_protocol_driver, driver);
-	for (id = driver->id_table; id->match_flags != 0; id++) {
+	id = driver->id_table;
+	if (!id)
+		return 0;
+
+	for (; id->match_flags != 0; id++) {
 		if ((id->match_flags & IEEE1394_MATCH_VENDOR_ID) &&
 		    id->vendor_id != ud->vendor_id)
 			continue;
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c
index 37e7e109af3..3634785d3b4 100644
--- a/drivers/ieee1394/raw1394.c
+++ b/drivers/ieee1394/raw1394.c
@@ -2959,7 +2959,6 @@ MODULE_DEVICE_TABLE(ieee1394, raw1394_id_table);
 
 static struct hpsb_protocol_driver raw1394_driver = {
 	.name = "raw1394",
-	.id_table = raw1394_id_table,
 };
 
 /******************************************************************************/
diff --git a/drivers/ieee1394/video1394.c b/drivers/ieee1394/video1394.c
index bd28adfd7af..cc240b2e72d 100644
--- a/drivers/ieee1394/video1394.c
+++ b/drivers/ieee1394/video1394.c
@@ -1315,8 +1315,7 @@ static struct ieee1394_device_id video1394_id_table[] = {
 MODULE_DEVICE_TABLE(ieee1394, video1394_id_table);
 
 static struct hpsb_protocol_driver video1394_driver = {
-	.name		= VIDEO1394_DRIVER_NAME,
-	.id_table	= video1394_id_table,
+	.name = VIDEO1394_DRIVER_NAME,
 };