[libvirt] [PATCH] Fix uninitialized variable in NWfilter IP learning code

[Matthias Bolte]

2011/11/23 Daniel P. Berrange <berrange at redhat.com>:
> From: "Daniel P. Berrange" <berrange at redhat.com>
>
> Pushed as a build-breaker fix
>
> * src/nwfilter/nwfilter_learnipaddr.c: Initialize ret variable
> ---
>  src/nwfilter/nwfilter_learnipaddr.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/src/nwfilter/nwfilter_learnipaddr.c b/src/nwfilter/nwfilter_learnipaddr.c
> index 675ef5b..d924c4d 100644
> --- a/src/nwfilter/nwfilter_learnipaddr.c
> +++ b/src/nwfilter/nwfilter_learnipaddr.c
> @@ -340,6 +340,7 @@ virNWFilterAddIpAddrForIfname(const char *ifname, char *addr)
>     } else {
>         if (virNWFilterVarValueAddValue(val, addr) < 0)
>             ret = -1;
> +        ret = 0;
>     }
>
>  err_exit:

This looks wrong to me. You're overwriting a possible error from
virNWFilterVarValueAddValue here. I don't think that this is intended.

Did you mean to initialize ret to zero on declaration, or put ret = 0
in an else branch here instead?

-- 
Matthias Bolte
http://photron.blogspot.com