Re: [libvirt] [PATCH v1 15/40] util: firewall: use VIR_AUTOFREE instead of VIR_FREE for scalar types

On Mon, 23 Jul 2018 at 18:39, Erik Skultety <eskultet(a)redhat.com&gt; wrote: > > On Sat, Jul 21, 2018 at 05:36:47PM +0530, Sukrit Bhatnagar wrote: > > By making use of GNU C's cleanup attribute handled by the > > VIR_AUTOFREE macro for declaring scalar variables, majority > > of the VIR_FREE calls can be dropped, which in turn leads to > > getting rid of most of our cleanup sections. > > > > Signed-off-by: Sukrit Bhatnagar <skrtbhtngr(a)gmail.com&gt; > > --- > > src/util/virfirewall.c | 16 +++++----------- > > 1 file changed, 5 insertions(+), 11 deletions(-) > > > > diff --git a/src/util/virfirewall.c b/src/util/virfirewall.c > > index dfd792f..b4a4d06 100644 > > --- a/src/util/virfirewall.c > > +++ b/src/util/virfirewall.c > > @@ -511,7 +511,7 @@ void virFirewallRuleAddArgFormat(virFirewallPtr firewall, > > virFirewallRulePtr rule, > > const char *fmt, ...) > > { > > - char *arg; > > + VIR_AUTOFREE(char *) arg = NULL; > > va_list list; > > > > VIR_FIREWALL_RULE_RETURN_IF_ERROR(firewall, rule); > > @@ -525,13 +525,11 @@ void virFirewallRuleAddArgFormat(virFirewallPtr firewall, > > > > va_end(list); > > > > - VIR_FREE(arg); > > return; > > > > no_memory: > > firewall->err = ENOMEM; > > va_end(list); > > - VIR_FREE(arg); > > There could be an additional patch replacing the no_memory label with 'cleanup' > with the obvious adjustments. There are many functions in virfirewall.c where no_memory is used instead of cleanup. So I should change either all of them, or none of them.