Re: 2.6.5-rc2-mm5

[Russell King]

On Mon, Mar 29, 2004 at 01:45:25AM -0800, Andrew Morton wrote:
> +remove-down_tty_sem.patch
> +tty-locking-again.patch
> 
>  Really, really fix the tty open/close race.

Erm, note that tty drivers are supposed to handle the open/close stuff
themselves, and it is completely valid for ->close to be called while
another thread is in ->open.  In fact, it's desirable since ->open may
be waiting for the DCD line from a modem to activate, while there may
be a simultaneous O_NONBLOCK open/ioctl/close from stty.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 PCMCIA      - http://pcmcia.arm.linux.org.uk/
                 2.6 Serial core
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