From: Petr Beneš <[email protected]> Make a note in an unexpected situation, e.g. queuing a request on a disabled endpoint, enabling an enabled endpoint...
Signed-off-by: Petr Beneš <[email protected]> Signed-off-by: Michal Vokáč <[email protected]> --- drivers/usb/gadget/ci_udc.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c index b3bbbb6ad32c..ea8939060efd 100644 --- a/drivers/usb/gadget/ci_udc.c +++ b/drivers/usb/gadget/ci_udc.c @@ -273,8 +273,10 @@ ci_ep_alloc_request(struct usb_ep *ep, unsigned int gfp_flags) if (ci_ep->desc) num = ci_ep->desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; - if (num == 0 && controller.ep0_req) + if (num == 0 && controller.ep0_req) { + DBG("%s: already got controller.ep0_req = %p\n", __func__, controller.ep0_req); return &controller.ep0_req->req; + } ci_req = calloc(1, sizeof(*ci_req)); if (!ci_req) @@ -296,6 +298,8 @@ static void ci_ep_free_request(struct usb_ep *ep, struct usb_request *req) if (ci_ep->desc) num = ci_ep->desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; + else + DBG("%s: no endpoint %p descriptor\n", __func__, ci_ep); if (num == 0) { if (!controller.ep0_req) @@ -622,8 +626,10 @@ static int ci_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req) break; } - if (&ci_req->req != _req) + if (&ci_req->req != _req) { + DBG("%s: ci_req not found in the queue\n", __func__); return -EINVAL; + } list_del_init(&ci_req->queue); -- 2.43.0
