Re: [Qemu-devel] [PATCH] qapi: Fix memory leak

[Luiz Capitulino]

On Sun, 19 Aug 2012 12:12:29 +0200
Laszlo Ersek <address@hidden> wrote:

> On 08/18/12 22:51, Stefan Weil wrote:
> > valgrind report:
> > 
> > ==24534== 232 bytes in 2 blocks are definitely lost in loss record 1,245 of 
> > 1,601
> > ==24534==    at 0x4824F20: malloc (vg_replace_malloc.c:236)
> > ==24534==    by 0x293C88: malloc_and_trace (vl.c:2281)
> > ==24534==    by 0x489AD99: ??? (in /lib/libglib-2.0.so.0.2400.1)
> > ==24534==    by 0x489B23B: g_malloc0 (in /lib/libglib-2.0.so.0.2400.1)
> > ==24534==    by 0x2B4EFC: opts_visitor_new (opts-visitor.c:376)
> > ==24534==    by 0x29DEA5: net_client_init (net.c:708)
> > ==24534==    by 0x29E6C7: net_init_client (net.c:966)
> > ==24534==    by 0x2C2179: qemu_opts_foreach (qemu-option.c:1114)
> > ==24534==    by 0x29E85B: net_init_clients (net.c:1008)
> > ==24534==    by 0x296F40: main (vl.c:3463)
> > 
> > Signed-off-by: Stefan Weil <address@hidden>
> > ---
> >  qapi/opts-visitor.c |    2 +-
> >  1 files changed, 1 insertions(+), 1 deletions(-)
> > 
> > diff --git a/qapi/opts-visitor.c b/qapi/opts-visitor.c
> > index a59d306..e048b6c 100644
> > --- a/qapi/opts-visitor.c
> > +++ b/qapi/opts-visitor.c
> > @@ -416,7 +416,7 @@ opts_visitor_cleanup(OptsVisitor *ov)
> >          g_hash_table_destroy(ov->unprocessed_opts);
> >      }
> >      g_free(ov->fake_id_opt);
> > -    memset(ov, '\0', sizeof *ov);
> > +    g_free(ov);
> >  }
> >  
> >  
> 
> I don't remember why I thought the object would / should live on. I must
> have implemented what I thought was safe / correct for the life-cycle,
> except I got the life-cycle wrong. Face, meet palm.
> 
> Reviewed-by: Laszlo Ersek <address@hidden>

Applied to the qmp branch for 1.2.