Re: [-mm3 patch]Warning fix: check the return value of kobject_add etc.

["Cong WANG" <xiyou.wangcong@gmail.com>]

2007/4/1, Andrew Morton <akpm@linux-foundation.org>:
> On Sun, 1 Apr 2007 14:20:46 +0800 "Cong WANG" <xiyou.wangcong@gmail.com> wrote:
>
> >
> > >
> > > Also, please always prepare patches in `patch -p1' form, as per
> > > http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt, thanks.
> > >
> > >
> >
> > Sorry. I am confused with this. Does that mean I should make patches
> > _upon_ the root kernel source directory or first make a copy of the
> > original source code and then diff against the two dirs? But I was
> > told that "patches should be based _in_ the root kernel source
> > directory" and when only one file was modified just to diff it with
> > the original single file. (See Documentation/SubmittingPatches.)
>
> The headers should look like:
>
> --- a/arch/cris/kernel/crisksyms.c
> +++ a/arch/cris/kernel/crisksyms.c
>
> I don't know how people do that.  One obvious way is to do
>
> cd /usr/src
> diff -u linux-orig/arch/cris/kernel/crisksyms.c linux-new/arch/cris/kernel/crisksyms.c
>
> other people probably alter the diff headers.

Oh, thanks. I know.

>
> > And should I remake this patch?
>
> Sure, but please change it to perform correct error handling first.  And
> test that error handling, if you can.  That will involve adding artificial
> errors.
>

I will remake it soon and send it again.

In fact, I have just tested it roughly. And I don't how to produce
artificial errors. Sorry, I hope someone can help me to test it
carefully.