Re: TTY Driver Open and Close Logic

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Tue Dec 18 2001 - 09:16:35 EST


> I have been working on various serial drivers and I notice that physical
> driver close routine is called in all cases even if the physical driver
> open routine fails. That suggests to me that a lot of the MOD_DEC/INC_COUNT
> logic in serial.c and other physical serial drivers is incorrect. As
> serial.c seems usually to be compiled into the kernel the issue
> is not so important, but a lot of the other logic associated with
> open counts also seems incorrect. Is this observation correct?

Possibly so. But everyone who sent me a 2.2 patch to redo it broke stuff and
caused crashes and panics. Its worth doing for 2.5.x tho - along with proper
refcounting and killing the BKL

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This archive was generated by hypermail 2b29 : Sun Dec 23 2001 - 21:00:16 EST