Re: [kbuild-all] Re: sound/soc/soc-compress.c:75:28: warning: 'component' is used uninitialized in this function

[Rong Chen]

On 4/21/20 2:23 PM, Kuninori Morimoto wrote:
> Hi
>
> > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head:   7a56db0299f9d43b4fe076838150c5cc293df131
> > commit: 613fb50059cf19aa6acbc503a00265d9151c0b09 ASoC: soc-core: remove snd_soc_rtdcom_list
> > date:   3 months ago
> > config: i386-randconfig-a002-20200420 (attached as .config)
> > compiler: gcc-6 (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
> > reproduce:
> >          git checkout 613fb50059cf19aa6acbc503a00265d9151c0b09
> >          # save the attached .config to linux build tree
> >          make ARCH=i386
> >
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kbuild test robot <lkp@xxxxxxxxx>
> >
> > All warnings (new ones prefixed by >>):
> >
> >     sound/soc/soc-compress.c: In function 'soc_compr_open':
> > > > sound/soc/soc-compress.c:75:28: warning: 'component' is used uninitialized in this function [-Wuninitialized]
> >       struct snd_soc_component *component, *save = NULL;
> >                                 ^~~~~~~~~
> Hmm... I still can't reproduce this issue.
> I don't have gcc-6, thus can't try it.
> Is this the issue ??

Hi Kuninori,

We can reproduce the warning with gcc-6 (gcc version 6.5.0 20181026 
(Debian 6.5.0-2)),
and the warning can be closed if changed to "struct snd_soc_component 
*component = NULL, *save = NULL;"

Best Regards,
Rong Chen