stable.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: <gregkh@linuxfoundation.org>
To: benh@kernel.crashing.org, felipe.balbi@linux.intel.com,
	stable@vger.kernel.org
Subject: patch "usb: gadget: Fix OS descriptors support" added to usb-linus
Date: Tue, 17 Jul 2018 10:53:51 +0200	[thread overview]
Message-ID: <153181763143206@kroah.com> (raw)


This is a note to let you know that I've just added the patch titled

    usb: gadget: Fix OS descriptors support

to my usb git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.

If you have any questions about this process, please let me know.


>From 50b9773c13bffbef32060e67c4483ea7b2eca7b5 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Wed, 27 Jun 2018 12:33:56 +1000
Subject: usb: gadget: Fix OS descriptors support

The current code is broken as it re-defines "req" inside the
if block, then goto out of it. Thus the request that ends
up being sent is not the one that was populated by the
code in question.

This fixes RNDIS driver autodetect by Windows 10 for me.

The bug was introduced by Chris rework to remove the local
queuing inside the if { } block of the redefined request.

Fixes: 636ba13aec8a ("usb: gadget: composite: remove duplicated code in OS desc handling")
Cc: <stable@vger.kernel.org> # v4.17
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
---
 drivers/usb/gadget/composite.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index d2fa071c21b1..b8a15840b4ff 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1819,7 +1819,6 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 		if (cdev->use_os_string && cdev->os_desc_config &&
 		    (ctrl->bRequestType & USB_TYPE_VENDOR) &&
 		    ctrl->bRequest == cdev->b_vendor_code) {
-			struct usb_request		*req;
 			struct usb_configuration	*os_desc_cfg;
 			u8				*buf;
 			int				interface;
-- 
2.18.0

                 reply	other threads:[~2018-07-17  9:25 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=153181763143206@kroah.com \
    --to=gregkh@linuxfoundation.org \
    --cc=benh@kernel.crashing.org \
    --cc=felipe.balbi@linux.intel.com \
    --cc=stable@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).