On 11/29/2015 9:29 PM, changbin.du@xxxxxxxxx wrote: > From: "Du, Changbin" <changbin.du@xxxxxxxxx> > > With the first patch, enable a enabled ep will return -EBUSY. > The second patch forbid queuing on disabled ep to avoid panic. The usb_ep->enabled flag was added in 4.4. It looks like these same checks are also added at the API level in the usb_ep_enable() and usb_ep_disable(). In case this is bypassed we should probably add them in the gadget anyways but using the existing flag. Regards, John > > Du, Changbin (2): > usb: dwc2: add ep enabled flag to avoid double enable/disable > usb: dwc2: forbid queuing request to a disabled ep > > drivers/usb/dwc2/core.h | 1 + > drivers/usb/dwc2/gadget.c | 26 +++++++++++++++++++++++++- > 2 files changed, 26 insertions(+), 1 deletion(-) > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html