This is a note to let you know that I've just added the patch titled
usb: cdnsp: Fixes issue with dequeuing not queued requests
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-cdnsp-fixes-issue-with-dequeuing-not-queued-requests.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 34f08eb0ba6e4869bbfb682bf3d7d0494ffd2f87 Mon Sep 17 00:00:00 2001
From: Pawel Laszczak <pawell@xxxxxxxxxxx>
Date: Thu, 13 Jul 2023 04:14:29 -0400
Subject: usb: cdnsp: Fixes issue with dequeuing not queued requests
From: Pawel Laszczak <pawell@xxxxxxxxxxx>
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@xxxxxxxxxxxxxxx
Fixes: 3d82904559f4 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver")
Signed-off-by: Pawel Laszczak <pawell@xxxxxxxxxxx>
Acked-by: Peter Chen <peter.chen@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230713081429.326660-1-pawell@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/cdns3/cdnsp-gadget.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/usb/cdns3/cdnsp-gadget.c
+++ b/drivers/usb/cdns3/cdnsp-gadget.c
@@ -1125,6 +1125,9 @@ static int cdnsp_gadget_ep_dequeue(struc
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",
Patches currently in stable-queue which might be from pawell@xxxxxxxxxxx are
queue-6.1/usb-cdnsp-fixes-issue-with-dequeuing-not-queued-requests.patch
