AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

[PATCH] usb: klist_node_attached() fix

Browse Source 
The original code looks like this:

        /* if interface was already added, bind now; else let
         * the future device_add() bind it, bypassing probe()
         */
        if (!list_empty (&dev->bus_list))
                device_bind_driver(dev);

IOW, it's checking to see if the device is attached to the bus or not
and binding the driver if it is. It's checking the device's bus list,
which will only appear empty when the device has been initialized, but
not added. It depends way too much on the driver model internals, but it
seems to be the only way to do the weird crap they want to do with
interfaces.

When I converted it to use klists, I accidentally inverted the logic,
which led to bad things happening. This patch returns the check to its
orginal value.

From: Patrick Mochel <mochel@digitalimplant.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Index: gregkh-2.6/drivers/usb/core/usb.c
===================================================================
This commit is contained in:
Patrick Mochel 2005-06-20 15:15:28 -07:00 committed by Greg Kroah-Hartman
parent 12eac738e5
commit 273971bade
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/core/usb.c
View File

@ -293,7 +293,7 @@ int usb_driver_claim_interface(struct usb_driver *driver,
/* if interface was already added, bind now; else let
* the future device_add() bind it, bypassing probe()
*/
if (!klist_node_attached (&dev->knode_bus))
if (klist_node_attached(&dev->knode_bus))
device_bind_driver(dev);
return 0;