[libvirt] [PATCH v2 15/41] util: firewall: use VIR_AUTOFREE instead of VIR_FREE for scalar types
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>
---
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);
}
@@ -678,7 +676,7 @@ virFirewallApplyRuleDirect(virFirewallRulePtr rule,
virCommandPtr cmd = NULL;
int status;
int ret = -1;
- char *error = NULL;
+ VIR_AUTOFREE(char *) error = NULL;
if (!bin) {
virReportError(VIR_ERR_INTERNAL_ERROR,
@@ -702,11 +700,10 @@ virFirewallApplyRuleDirect(virFirewallRulePtr rule,
if (ignoreErrors) {
VIR_DEBUG("Ignoring error running command");
} else {
- char *args = virCommandToString(cmd);
+ VIR_AUTOFREE(char *) args = virCommandToString(cmd);
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to apply firewall rules %s: %s"),
NULLSTR(args), NULLSTR(error));
- VIR_FREE(args);
VIR_FREE(*output);
goto cleanup;
}
@@ -714,7 +711,6 @@ virFirewallApplyRuleDirect(virFirewallRulePtr rule,
ret = 0;
cleanup:
- VIR_FREE(error);
virCommandFree(cmd);
return ret;
}
@@ -807,12 +803,11 @@ virFirewallApplyRule(virFirewallPtr firewall,
virFirewallRulePtr rule,
bool ignoreErrors)
{
- char *output = NULL;
+ VIR_AUTOFREE(char *) output = NULL;
+ VIR_AUTOFREE(char *) str = virFirewallRuleToString(rule);
char **lines = NULL;
int ret = -1;
- char *str = virFirewallRuleToString(rule);
VIR_INFO("Applying rule '%s'", NULLSTR(str));
- VIR_FREE(str);
if (rule->ignoreErrors)
ignoreErrors = rule->ignoreErrors;
@@ -857,7 +852,6 @@ virFirewallApplyRule(virFirewallPtr firewall,
ret = 0;
cleanup:
virStringListFree(lines);
- VIR_FREE(output);
return ret;
}
--
1.8.3.1