linux-2.6.5-cdc-acm.oops-1.patch

Miguel Bazdresch lfs-01 at thewizardstower.org
Mon Apr 12 05:15:11 PDT 2004


This patch fixes a problem that appears with some usb drivers in linux
2.6.5.

Bzipped version:

http://thewizardstower.org/linux-2.6.5-cdc-acm.oops-1.patch.bz2

-- 
Miguel Bazdresch
http://thewizardstower.org/
-------------- next part --------------
Submitted By: Miguel Bazdresch <lfs-01 at thewizardstower.org>
Date: 2004-04-12
Initial Package Version: 2.6.5
Upstream Status: accepted into the -mm tree
Origin: The linux-usb-devel mailing list
        See: http://marc.theaimsgroup.com/?l=linux-usb-devel&m=108024624628198&w=2
        The patch referenced above was made against a 2.6.5 release
        candidate and applies cleanly except for an offset. The patch
        below was created by me against 2.6.5 final and eliminates the
        offset.
Description: Changes in the usb code in 2.6.5 causes some usb drivers to
             oops. In particular, the 1.9.6 driver for Eagle chip-based ADSL
             modems doesn't work with 2.6.5. The consensus seems to be
             that it's a kernel problem, and this patch fixes it.
             For more info see:
             http://forum.eagle-usb.org/viewtopic.php?t=1998&postdays=0&postorder=asc&start=0

diff -Naur linux-2.6.5.orig/drivers/usb/core/message.c linux-2.6.5/drivers/usb/core/message.c
--- linux-2.6.5.orig/drivers/usb/core/message.c	2004-04-04 03:36:46.000000000 +0000
+++ linux-2.6.5/drivers/usb/core/message.c	2004-04-11 21:13:55.000000000 +0000
@@ -1172,10 +1172,24 @@
 				 configuration,
 				 alt->desc.bInterfaceNumber);
 			dev_dbg (&dev->dev,
+				"initializing %s (config #%d, interface %d)\n",
+				intf->dev.bus_id, configuration,
+				intf->cur_altsetting->desc.bInterfaceNumber);
+			device_initialize (&intf->dev);			
+		}
+		
+		/* all interfaces are initialized, we can now 
+		 * register them
+		 */
+		for (i = 0; i < cp->desc.bNumInterfaces; ++i) {
+			struct usb_interface *intf = cp->interface[i];
+			dev_dbg (&dev->dev,
 				"registering %s (config #%d, interface %d)\n",
 				intf->dev.bus_id, configuration,
-				alt->desc.bInterfaceNumber);
-			device_register (&intf->dev);
+				intf->cur_altsetting->desc.bInterfaceNumber);
+			if ((ret = device_add (&intf->dev)) < 0)
+				goto out;
+				
 			usb_create_driverfs_intf_files (intf);
 		}
 	}


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