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SubjectRe: [TRIVIAL] Error checks omitted in init_tmpfs() in mm/tiny-shmem.c
On Mon, Oct 24, 2005 at 11:00:47PM +0200, Muli Ben-Yehuda wrote:
> On Mon, Oct 24, 2005 at 01:45:18PM -0700, Matt Mackall wrote:
>
> > > --- linux-2.6.13.4/mm/tiny-shmem.c 2005-10-10 13:54:29.000000000 -0500
> > > +++ linux-2.6.13.4-edit/mm/tiny-shmem.c 2005-10-24 03:43:38.614071000 -0500
> > > @@ -31,12 +31,18 @@
> > >
> > > static int __init init_tmpfs(void)
> > > {
> > > - register_filesystem(&tmpfs_fs_type);
> > > + int error;
> > > +
> > > + error = register_filesystem(&tmpfs_fs_type);
> > > + BUG_ON(error);
> >
> > Can we just do BUG_ON(register_filesystem() != 0)?
>
> It seems a little risky to me to rely on a macro always evaluating its
> arguments, even though this one does on every kernel version I
> checked.

You must have missed my patch on 1 April that allows turning off all
kernel bugs. It makes sure the arguments are still evaluated.

--
Mathematics is the supreme nostalgia of our time.
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