Re: [PATCH -tip] x86: reboot_fixup_32.c add missing pci_dev_put

From: Ingo Molnar
Date: Wed Dec 02 2009 - 12:14:59 EST



* H. Peter Anvin <hpa@xxxxxxxxx> wrote:

> On 12/02/2009 02:09 AM, Ingo Molnar wrote:
> >
> > * Xiaotian Feng <dfeng@xxxxxxxxxx> wrote:
> >
> >> pci_get_device increments reference count to the found pci device,
> >> that should be decremented using pci_dev_put.
> >
> >> +++ b/arch/x86/kernel/reboot_fixups_32.c
> >> @@ -80,6 +80,7 @@ void mach_reboot_fixups(void)
> >> continue;
> >>
> >> cur->reboot_fixup(dev);
> >> + pci_dev_put(dev);
> >
> > Does this matter in practice? We are about to reboot. (but if it's
> > cleaner to do it like this or if there's some real bug fixed by this
> > then please spell it out in the changelog.)
> >
>
> Even if it doesn't actually matter, doing things cleanly makes it
> easier to handle failure scenarios, possibly that are discovered in
> the future.

certainly - but it would be nice to know whether there's any other
reason for this but cleanliness/consistency.

Ingo
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