Re: [PATCH] bnep: Add extra debug information for bnep_up

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On Thursday 09 of October 2014 13:30:44 Szymon Janc wrote:
> Hi Andrei,
> 
> On Thursday 09 of October 2014 13:17:43 Andrei Emeltchenko wrote:
> > From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
> > 
> > Adding extra debug information helps to investigate failing cases
> > ---
> >  profiles/network/bnep.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/profiles/network/bnep.c b/profiles/network/bnep.c
> > index 136709d..a6b8728 100644
> > --- a/profiles/network/bnep.c
> > +++ b/profiles/network/bnep.c
> > @@ -210,7 +210,8 @@ static int bnep_if_up(const char *devname)
> >  	close(sk);
> >  
> >  	if (err < 0) {
> > -		error("Could not bring up %s", devname);
> > +		error("Could not bring up %s: %s(%d)", devname, strerror(errno),
> > +									errno);
> >  		return err;
> >  	}
> 
> You should use -err no errno here. Errno might be already overwritten by call
> to close().

Well, not exactly, errno should be also stored to err before calling close().

-- 
Best regards, 
Szymon Janc
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