On Tue, Jul 15, 2014 at 10:07:40PM +0800, Li Jun wrote:
> This patch try to dequeue the cdev->req to guarantee the request is not queued
> before free it.
>
> Signed-off-by: Li Jun <[email protected]>
I noticed the same problem when porting the latest USB gadget stack from
the Kernel to barebox.
> ---
> drivers/usb/gadget/composite.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
> index f801519..6935a82 100644
> --- a/drivers/usb/gadget/composite.c
> +++ b/drivers/usb/gadget/composite.c
> @@ -1956,6 +1956,7 @@ void composite_dev_cleanup(struct usb_composite_dev
> *cdev)
> }
> if (cdev->req) {
> kfree(cdev->req->buf);
> + usb_ep_dequeue(cdev->gadget->ep0, cdev->req);
The request should be dequeued before the buffer is freed, not
afterwards.
Otherwise:
Acked-by: Sascha Hauer <[email protected]>
Sascha
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