On Wed, Dec 10, 2003 at 12:46:21PM -0800, Greg KH wrote:
> > Of course, if all you want to do is unload the module then it doesn't
> > matter which host is which. You just have to wait until they are all
> > gone.
>
> Exactly, and that will happen, if we wait on that
> class_device_unregister() call. An example of how to do that can be
> seen in the i2c_del_adapter() function in drivers/i2c/i2c-core.c.
Ok, below is the patch. I've only compile tested it, not run it yet.
Please let me know if it works for you or not.
thanks,
greg k-h
===== hcd.c 1.123 vs edited =====
--- 1.123/drivers/usb/core/hcd.c Sun Dec 7 04:29:05 2003
+++ edited/hcd.c Wed Dec 10 13:06:19 2003
@@ -588,6 +588,9 @@
if (bus->release)
bus->release(bus);
+ /* FIXME change this when the driver core gets the
+ * class_device_unregister_wait() call */
+ complete(&bus->released);
}
static struct class usb_host_class = {
@@ -724,7 +727,11 @@
clear_bit (bus->busnum, busmap.busmap);
+ /* FIXME change this when the driver core gets the
+ * class_device_unregister_wait() call */
+ init_completion(&bus->released);
class_device_unregister(&bus->class_dev);
+ wait_for_completion(&bus->released);
}
EXPORT_SYMBOL (usb_deregister_bus);
===== usb.h 1.164 vs edited =====
--- 1.164/include/linux/usb.h Mon Oct 6 10:46:13 2003
+++ edited/usb.h Wed Dec 10 13:07:27 2003
@@ -210,6 +210,8 @@
struct class_device class_dev; /* class device for this bus */
void (*release)(struct usb_bus *bus); /* function to destroy this bus's
memory */
+ /* FIXME, remove this when the driver core gets class_device_unregister_wait */
+ struct completion released;
};
#define to_usb_bus(d) container_of(d, struct usb_bus, class_dev)
-------------------------------------------------------
This SF.net email is sponsored by: IBM Linux Tutorials.
Become an expert in LINUX or just sharpen your skills. Sign up for IBM's
Free Linux Tutorials. Learn everything from the bash shell to sys admin.
Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&op=click
_______________________________________________
[EMAIL PROTECTED]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
