linux-kernel - Re: [PATCH] drivers:usb:serial:ftdi_sio.c: ftdi_set_termios make no sense some in a situation

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Message-ID: <20111206035852.GA17764@udknight.homenetwork>
Date:	Tue, 6 Dec 2011 11:58:52 +0800
From:	Wang YanQing <udknight@...il.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	gregkh@...e.de, amworsley@...il.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers:usb:serial:ftdi_sio.c: ftdi_set_termios make no
 sense some in a situation

On Mon, Dec 05, 2011 at 11:34:24AM +0000, Alan Cox wrote:
> NACK
> 
> Think about what happens if you have two such ports or remove and re-add
> it.
> 
Alan, you are right! Thanks
> What code path is calling set_termios passing a termios data which has
> never been set ?
> 
> Alan

The question I meet is my usb-convertor base on FT232RL doesn't work, but it 
works well if I revert b1ffb4c851f185e9051ba837c16d9b84ef688d26.It seems that
I should dig deeper.
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