linux-kernel - Re: [PATCH] tty: serial: fsl_lpuart: Fix lpuart_flush

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Message-ID: <CAOMZO5A2QvTa1h3fDHitbqgSXf0CTc4KuZS5Er0cHb3zpkC+cA@mail.gmail.com>
Date:   Fri, 4 Oct 2019 19:06:03 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Andrey Smirnov <andrew.smirnov@...il.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Stefan Agner <stefan@...er.ch>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Chris Healy <cphealy@...il.com>,
        Cory Tusar <cory.tusar@....aero>,
        Lucas Stach <l.stach@...gutronix.de>,
        Jiri Slaby <jslaby@...e.com>,
        NXP Linux Team <linux-imx@....com>,
        linux-serial@...r.kernel.org,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] tty: serial: fsl_lpuart: Fix lpuart_flush_buffer()

On Fri, Oct 4, 2019 at 6:59 PM Andrey Smirnov <andrew.smirnov@...il.com> wrote:
>
> Fix incorrect read-modify-write sequence in lpuart_flush_buffer() that
> was reading from UARTPFIFO and writing to UARTCFIFO instead of
> operating solely on the latter.
>
> Fixes: 9bc19af9dacb ("tty: serial: fsl_lpuart: Flush HW FIFOs in .flush_buffer")
> Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com>

Reviewed-by: Fabio Estevam <festevam@...il.com>