The patch below does not apply to the 3.8-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.
thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 511f3c5326eabe1ece35202a404c24c0aeacc246 Mon Sep 17 00:00:00 2001 From: Alan Stern <[email protected]> Date: Fri, 15 Mar 2013 14:02:14 -0400 Subject: [PATCH] usb: gadget: udc-core: fix a regression during gadget driver unbinding This patch (as1666) fixes a regression in the UDC core. The core takes care of unbinding gadget drivers, and it does the unbinding before telling the UDC driver to turn off the controller hardware. When the call to the udc_stop callback is made, the gadget no longer has a driver. The callback routine should not be invoked with a pointer to the old driver; doing so can cause problems (such as use-after-free accesses in net2280). This patch should be applied, with appropriate context changes, to all the stable kernels going back to 3.1. Signed-off-by: Alan Stern <[email protected]> CC: <[email protected]> Signed-off-by: Felipe Balbi <[email protected]> diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index 2a9cd36..f8f62c3 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -216,7 +216,7 @@ static void usb_gadget_remove_driver(struct usb_udc *udc) usb_gadget_disconnect(udc->gadget); udc->driver->disconnect(udc->gadget); udc->driver->unbind(udc->gadget); - usb_gadget_udc_stop(udc->gadget, udc->driver); + usb_gadget_udc_stop(udc->gadget, NULL); udc->driver = NULL; udc->dev.driver = NULL; -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
