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| author | Patrik Sevallius <patrik.sevallius@enea.com> | 2007-11-20 20:32:00 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-02-02 01:34:52 +0300 |
| commit | eb0be47dbbdca133b1b94adc564297f25176b3ab (patch) | |
| tree | 29b36900829961e7117706a43e4217fef64edee5 /drivers/usb/gadget/at91_udc.c | |
| parent | 7b62cc86689e721f0aae87e88cb04ca841cf6c38 (diff) | |
| download | linux-eb0be47dbbdca133b1b94adc564297f25176b3ab.tar.xz | |
USB: usb peripheral controller driver oops avoidance
I'm having problem with oopses when rebooting, if I modprobe g_serial
and rmmod g_serial and do a reboot I get an oops in device_shutdown().
The reason seems to be that usb_gadget_unregister_driver() doesn't do
enough cleanup. With this at91_udc patch I don't get the oops.
Signed-off-by: Patrik Sevallius <patrik.sevallius@enea.com>
[ Same bug was in other peripheral controller drivers; fixed ]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget/at91_udc.c')
| -rw-r--r-- | drivers/usb/gadget/at91_udc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index cd62b029d176..4b6ed353ae36 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -1616,6 +1616,8 @@ int usb_gadget_unregister_driver (struct usb_gadget_driver *driver) local_irq_enable(); driver->unbind(&udc->gadget); + udc->gadget.dev.driver = NULL; + udc->gadget.dev.driver_data = NULL; udc->driver = NULL; DBG("unbound from %s\n", driver->driver.name); |