Re: [PATCH] remove check_region in drivers-char-specialix.c

[Borislav Petkov]

On Wed, Sep 28, 2005 at 06:52:44PM +0100, Al Viro wrote:
> On Wed, Sep 28, 2005 at 10:37:37AM +0200, Borislav Petkov wrote:
> > Hi Andrew,
> > 
> >    This is also a pretty simple case. We remove the wrapper and make
> >    sx__request_io_range return struct resource *. We check its value accordingly
> >    in the probing routine. It compiles cleanly here.
> 
> NAK.  You've just introduced a pile of leaks - if sx_probe() fails after
> that call, you end up with region claimed and not released.

Andrew told me already today that Jeff[1] had sent a patch fixing all that. To
prevent the leaks he's calling sx_release_io_range(bp) in every check before
exiting sx_probe so this seems correct. A small question though: After calling
sx_request_io_range() in the if-statement on line 499 is it ok to call
sx_request_io_range() for a second time in a row on line 587?  I think in
this case the second call has to go, no?

[1]rsync://rsync.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6.git

	

	
		
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