linux-kernel - Re: [syzbot] WARNING in usb_tx_block/usb_submit

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Message-ID: <2277739.ElGaqSPkdT@suse>
Date:   Thu, 16 Feb 2023 09:26:53 +0100
From:   "Fabio M. De Francesco" <fmdefrancesco@...il.com>
To:     hdanton@...a.com, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com,
        syzbot <syzbot+355c68b459d1d96c4d06@...kaller.appspotmail.com>
Subject: Re: [syzbot] WARNING in usb_tx_block/usb_submit_urb

On giovedì 16 febbraio 2023 08:44:18 CET syzbot wrote:
> Hello,
> 
> syzbot tried to test the proposed patch but the build/boot failed:
> 
> drivers/net/wireless/marvell/libertas/if_usb.c:865:43: error: expected ';'
> before ':' token
> 
> 
> Tested on:
> 
> commit:         f87b5646 dt-bindings: usb: amlogic,meson-g12a-usb-ctrl..
> git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/
usb.git
> dashboard link: https://syzkaller.appspot.com/bug?extid=355c68b459d1d96c4d06
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils
> for Debian) 2.35.2 patch:         
> https://syzkaller.appspot.com/x/patch.diff?x=1414acf0c80000

Sorry for this syntax error :-(

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git 
f87b564686ee

diff --git a/drivers/net/wireless/marvell/libertas/if_usb.c b/drivers/net/
wireless/marvell/libertas/if_usb.c
index 20436a289d5c..e03a5dcf6dab 100644
--- a/drivers/net/wireless/marvell/libertas/if_usb.c
+++ b/drivers/net/wireless/marvell/libertas/if_usb.c
@@ -859,6 +859,7 @@ static void if_usb_prog_firmware(struct lbs_private *priv, 
int ret,
                        j++;
                        msleep_interruptible(100);
                } while (cardp->bootcmdresp == 0 && j < 10);
+               usb_kill_urb(cardp->tx_urb);
        } while (cardp->bootcmdresp == 0 && i < 5);

        if (cardp->bootcmdresp == BOOT_CMD_RESP_NOT_SUPPORTED) {
--

Fabio