From 033c0d5101e543125f699ae310ae1a33714ed74b Mon Sep 17 00:00:00 2001 From: Pawel Laszczak Date: Thu, 13 Jul 2023 04:14:29 -0400 Subject: [PATCH] usb: cdnsp: Fixes issue with dequeuing not queued requests commit 34f08eb0ba6e4869bbfb682bf3d7d0494ffd2f87 upstream. Gadget ACM while unloading module try to dequeue not queued usb request which causes the kernel to crash. Patch adds extra condition to check whether usb request is processed by CDNSP driver. cc: stable@vger.kernel.org Fixes: 3d82904559f4 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver") Signed-off-by: Pawel Laszczak Acked-by: Peter Chen Link: https://lore.kernel.org/r/20230713081429.326660-1-pawell@cadence.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/cdns3/cdnsp-gadget.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/cdns3/cdnsp-gadget.c b/drivers/usb/cdns3/cdnsp-gadget.c index f9aa50ff14d42..0044897ee800d 100644 --- a/drivers/usb/cdns3/cdnsp-gadget.c +++ b/drivers/usb/cdns3/cdnsp-gadget.c @@ -1125,6 +1125,9 @@ static int cdnsp_gadget_ep_dequeue(struct usb_ep *ep, unsigned long flags; int ret; + if (request->status != -EINPROGRESS) + return 0; + if (!pep->endpoint.desc) { dev_err(pdev->dev, "%s: can't dequeue to disabled endpoint\n", -- 2.39.5