[PATCH 4/8] pseries: phyp dump: use sysfs to release reserved mem

Linas Vepstas linasvepstas at gmail.com
Wed Jan 9 05:34:26 EST 2008


On 07/01/2008, Stephen Rothwell <sfr at canb.auug.org.au> wrote:
> On Mon, 07 Jan 2008 18:21:57 -0600 Manish Ahuja <ahuja at austin.ibm.com> wrote:
> >
> > +static int __init phyp_dump_setup(void)
> > +{
> >
> > +     /* Is there dump data waiting for us? */
> > +     rtas = of_find_node_by_path("/rtas");
> > +     dump_header = of_get_property(rtas, "ibm,kernel-dump", &header_len);
>                                                                ^^^^^^^^^^^
> You could pass NULL here as header_len appears to be unused. Also you
> need "of_node_put(rtas)" somewhere (probably just here would do).

Perhaps the routine should have been "of_get_node_by_path()" ?

In ye olden days, "finds" didn't require put, but "gets" did. I'm guessing
that this has now all been fixed up for the of_xxx routines, but I think
that pci_find_xxx still does not require a pci_put.

Why did I bother to write this email? I dunno...
--linas



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