lkml.org 
[lkml]   [2017]   [Nov]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v1 3/9] perf util: Reconstruct rblist for supporting per-thread shadow stats
On Wed, Nov 22, 2017 at 02:57:12PM +0800, Jin, Yao wrote:
>
>
> On 11/22/2017 2:31 PM, Ravi Bangoria wrote:
> >
> > On 11/20/2017 08:13 PM, Jin Yao wrote:
> > > @@ -76,6 +97,17 @@ static struct rb_node *saved_value_new(struct
> > > rblist *rblist __maybe_unused,
> > >       return &nd->rb_node;
> > >   }
> > >
> > > +static void saved_value_delete(struct rblist *rblist __maybe_unused,
> > > +                   struct rb_node *rb_node)
> > > +{
> > > +    struct saved_value *v = container_of(rb_node,
> > > +                         struct saved_value,
> > > +                         rb_node);
> > > +
> > > +    if (v)
> > > +        free(v);
> > > +}
> >
> > Do we really need if(v) ?
> >
> > Thanks,
> > Ravi
> >
>
> Hi Ravi,
>
> Looks it doesn't need if(v).
>
> I put if(v) here is from my coding habits (checking pointer before free).
>
> It's OK for me if you think the code should be removed.

you could add BUG_ON(!rb_node);

jirka

\
 
 \ /
  Last update: 2017-11-22 09:32    [W:0.063 / U:1.948 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site