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linux-next: build warning after merge of the net-next tree

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  linux-next: build warning after merge of the net-next tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-07-04 05:20 +0200
    Re: linux-next: build warning after merge of the net-next tree Jason Wang <jasowang@redhat.com> - 2016-07-04 07:30 +0200

#1436291 — linux-next: build warning after merge of the net-next tree

Hi all,

After merging the net-next tree, today's linux-next build (powerpc
ppc64_defconfig) produced this warning:

drivers/net/tun.c: In function 'tun_do_read.part.5':
/home/sfr/next/next/drivers/net/tun.c:1491:6: warning: 'err' may be used uninitialized in this function [-Wmaybe-uninitialized]
  int err;
      ^

Introduced by commit

  1576d9860599 ("tun: switch to use skb array for tx")

I can't easily see if this is a false positive.

-- 
Cheers,
Stephen Rothwell

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#1436571

On 2016年07月04日 11:15, Stephen Rothwell wrote:
> Hi all,
>
> After merging the net-next tree, today's linux-next build (powerpc
> ppc64_defconfig) produced this warning:
>
> drivers/net/tun.c: In function 'tun_do_read.part.5':
> /home/sfr/next/next/drivers/net/tun.c:1491:6: warning: 'err' may be used uninitialized in this function [-Wmaybe-uninitialized]
>    int err;
>        ^
>
> Introduced by commit
>
>    1576d9860599 ("tun: switch to use skb array for tx")
>
> I can't easily see if this is a false positive.
>

Thanks for the reporting, will post a fix.

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