From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Johan Hovold <johan@kernel.org>
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
stable@vger.kernel.org
Subject: Re: [PATCH] USB: serial: digi_acceleport: fix hard lockup on disconnect
Date: Thu, 25 Jun 2026 15:56:54 +0100 [thread overview]
Message-ID: <2026062550-facelift-happiness-7279@gregkh> (raw)
In-Reply-To: <20260623151110.315126-1-johan@kernel.org>
On Tue, Jun 23, 2026 at 05:11:10PM +0200, Johan Hovold wrote:
> If submitting the OOB write urb fails persistently (e.g if the device is
> being disconnected) the driver would loop indefinitely with interrupts
> disabled.
>
> Check for urb submission errors when sending OOB commands to avoid
> hanging if, for example, open(), set_termios() or close() races with a
> physical disconnect.
>
> This is issue was flagged by Sashiko when reviewing an unrelated change
> to the driver.
>
> Link: https://sashiko.dev/#/patchset/20260610132232.356139-1-johan%40kernel.org?part=1
> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
> Cc: stable@vger.kernel.org
> Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
prev parent reply other threads:[~2026-06-25 14:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-23 15:11 [PATCH] USB: serial: digi_acceleport: fix hard lockup on disconnect Johan Hovold
2026-06-25 14:56 ` Greg Kroah-Hartman [this message]
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