linux-kernel - Re: [Bug #15589] 2.6.34-rc1: Badness at fs/proc/generic.c:316

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Message-Id: <201004210657.18864.rjw@sisk.pl>
Date:	Wed, 21 Apr 2010 06:57:18 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	michael@...erman.id.au
Cc:	Alexey Dobriyan <adobriyan@...il.com>,
	Christian Kujau <lists@...dbynature.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linuxppc-dev@...abs.org, schwab@...ux-m68k.org,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Maciej Rutecki <maciej.rutecki@...il.com>
Subject: Re: [Bug #15589] 2.6.34-rc1: Badness at fs/proc/generic.c:316

On Wednesday 21 April 2010, Michael Ellerman wrote:
> On Wed, 2010-04-21 at 18:55 +0300, Alexey Dobriyan wrote:
> > On Tue, Apr 20, 2010 at 10:18:18PM +1000, Michael Ellerman wrote:
> > > On Mon, 2010-04-19 at 23:45 -0700, Christian Kujau wrote:
> > > --- a/fs/proc/proc_devtree.c
> > > +++ b/fs/proc/proc_devtree.c
> > > @@ -175,6 +175,24 @@ retry:
> > >         return fixed_name;
> > >  }
> > >  
> > > +static const char *unslash_name(const char *name)
> > > +{
> > > +       char *p, *fixed_name;
> > > +
> > > +       fixed_name = kstrdup(name);
> > > +       if (!fixed_name) {
> > > +               printk(KERN_ERR "device-tree: Out of memory trying to unslash "
> > > +                               "name \"%s\"\n", name);
> > > +               return name;
> > > +       }
> > > +
> > > +       p = fixed_name;
> > > +       while ((p = strstr(p, "/")))
> > > +               *p++ = '_';
> > 
> > This is wasteful. :-)
> 
> Whatever, patches welcome :)
> 
> > Also, I hope we won't spit message every time allocation fail.
> 
> We do. Your system is mostly hosed anyway, but feel free to rate limit
> it or something.

OK

Is anyone going to post a clean patch for that with a sign-off?

Rafael
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