From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8BEA6C4361B for ; Sat, 12 Dec 2020 10:00:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5926B20771 for ; Sat, 12 Dec 2020 10:00:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2438523AbgLLKAS (ORCPT ); Sat, 12 Dec 2020 05:00:18 -0500 Received: from mail.kernel.org ([198.145.29.99]:33534 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2438524AbgLLKAN (ORCPT ); Sat, 12 Dec 2020 05:00:13 -0500 Subject: patch "USB: serial: keyspan_pda: fix stalled writes" added to usb-next DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1607767170; bh=zENidgJ7fRIOzluCJiWNw2f/ENnt9fOz/ksA1bllCoI=; h=To:From:Date:From; b=XDOhV3iRUnIjURcjBOCG5oaQo+iXVWzSBohFjmzKWOlkqUNUhGo+0lI3t14qaIsUP 0BBy5omy+QiAMGU7/cDyPeW2b8tBRMph6bz3xmctoWocIXExEB4PkwOUaqO7XwQHqn l6Im06MXRZpEZk5DX/oNc/Yv/INK0ISqYxhN4ksE= To: johan@kernel.org, bigeasy@linutronix.de, gregkh@linuxfoundation.org, stable@vger.kernel.org From: Date: Sat, 12 Dec 2020 10:59:19 +0100 Message-ID: <1607767159995@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org This is a note to let you know that I've just added the patch titled USB: serial: keyspan_pda: fix stalled writes 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-next 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 also be merged in the next major kernel release during the merge window. If you have any questions about this process, please let me know. >From c01d2c58698f710c9e13ba3e2d296328606f74fd Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Sun, 25 Oct 2020 18:45:49 +0100 Subject: USB: serial: keyspan_pda: fix stalled writes Make sure to clear the write-busy flag also in case no new data was submitted due to lack of device buffer space so that writing is resumed once space again becomes available. Fixes: 507ca9bc0476 ("[PATCH] USB: add ability for usb-serial drivers to determine if their write urb is currently being used.") Cc: stable # 2.6.13 Acked-by: Sebastian Andrzej Siewior Reviewed-by: Greg Kroah-Hartman Signed-off-by: Johan Hovold --- drivers/usb/serial/keyspan_pda.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index 17b60e5a9f1f..d6ebde779e85 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -548,7 +548,7 @@ static int keyspan_pda_write(struct tty_struct *tty, rc = count; exit: - if (rc < 0) + if (rc <= 0) set_bit(0, &port->write_urbs_free); return rc; } -- 2.29.2