This is a note to let you know that I've just added the patch titled
usb: gadget: udc: core: Prevent redundant calls to pullup
to the 6.3-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-gadget-udc-core-prevent-redundant-calls-to-pullup.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a3afbf5cc887fc3401f012fe629810998ed61859 Mon Sep 17 00:00:00 2001
From: Badhri Jagan Sridharan <badhri@xxxxxxxxxx>
Date: Fri, 7 Apr 2023 03:07:41 +0000
Subject: usb: gadget: udc: core: Prevent redundant calls to pullup
From: Badhri Jagan Sridharan <badhri@xxxxxxxxxx>
commit a3afbf5cc887fc3401f012fe629810998ed61859 upstream.
usb_gadget_connect calls gadget->ops->pullup without checking whether
gadget->connected was previously set. Make this symmetric to
usb_gadget_disconnect by returning early if gadget->connected is
already set.
Fixes: 5a1da544e572 ("usb: gadget: core: do not try to disconnect gadget if it is not connected")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Badhri Jagan Sridharan <badhri@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230407030741.3163220-2-badhri@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/gadget/udc/core.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -676,6 +676,9 @@ static int usb_gadget_connect_locked(str
goto out;
}
+ if (gadget->connected)
+ goto out;
+
if (gadget->deactivated || !gadget->udc->started) {
/*
* If gadget is deactivated we only save new state.
Patches currently in stable-queue which might be from badhri@xxxxxxxxxx are
queue-6.3/usb-gadget-udc-core-invoke-usb_gadget_connect-only-when-started.patch
queue-6.3/usb-gadget-udc-core-prevent-redundant-calls-to-pullup.patch
