[libvirt] [PATCH 2/7] util: Don't set/check for ENOMEM as a firewall error

[Fabiano Fidêncio]

As libvirt decided to take the path to not report OOM and simply abort
when it happens, let's get rid of OOM treatment in virfirewall.c and
simplify the code whenever it's possible.

Signed-off-by: Fabiano Fidêncio <fidencio at redhat.com>
---
 src/util/virfirewall.c | 30 ++++++------------------------
 1 file changed, 6 insertions(+), 24 deletions(-)

diff --git a/src/util/virfirewall.c b/src/util/virfirewall.c
index c6a5de8842..00b1bd0a97 100644
--- a/src/util/virfirewall.c
+++ b/src/util/virfirewall.c
@@ -391,7 +391,6 @@ virFirewallAddRuleFullV(virFirewallPtr firewall,
     return rule;
 
  cleanup:
-    firewall->err = ENOMEM;
     virFirewallRuleFree(rule);
     return NULL;
 }
@@ -492,10 +491,8 @@ void virFirewallRuleAddArg(virFirewallPtr firewall,
 
     ADD_ARG(rule, arg);
 
-    return;
-
  cleanup:
-    firewall->err = ENOMEM;
+    return;
 }
 
 
@@ -514,10 +511,8 @@ void virFirewallRuleAddArgFormat(virFirewallPtr firewall,
 
     ADD_ARG(rule, arg);
 
-    return;
-
  cleanup:
-    firewall->err = ENOMEM;
+    return;
 }
 
 
@@ -532,10 +527,8 @@ void virFirewallRuleAddArgSet(virFirewallPtr firewall,
         args++;
     }
 
-    return;
-
  cleanup:
-    firewall->err = ENOMEM;
+    return;
 }
 
 
@@ -553,12 +546,7 @@ void virFirewallRuleAddArgList(virFirewallPtr firewall,
     while ((str = va_arg(list, char *)) != NULL)
         ADD_ARG(rule, str);
 
-    va_end(list);
-
-    return;
-
  cleanup:
-    firewall->err = ENOMEM;
     va_end(list);
 }
 
@@ -591,15 +579,13 @@ void virFirewallStartTransaction(virFirewallPtr firewall,
 
     VIR_FIREWALL_RETURN_IF_ERROR(firewall);
 
-    if (!(group = virFirewallGroupNew())) {
-        firewall->err = ENOMEM;
+    if (!(group = virFirewallGroupNew()))
         return;
-    }
+
     group->actionFlags = flags;
 
     if (VIR_EXPAND_N(firewall->groups,
                      firewall->ngroups, 1) < 0) {
-        firewall->err = ENOMEM;
         virFirewallGroupFree(group);
         return;
     }
@@ -747,10 +733,6 @@ virFirewallApplyRule(virFirewallPtr firewall,
         if (rule->queryCB(firewall, rule->layer, (const char *const *)lines, rule->queryOpaque) < 0)
             return -1;
 
-        if (firewall->err == ENOMEM) {
-            virReportOOMError();
-            return -1;
-        }
         if (firewall->err) {
             virReportSystemError(firewall->err, "%s",
                                  _("Unable to create rule"));
@@ -818,7 +800,7 @@ virFirewallApply(virFirewallPtr firewall)
                        _("Failed to initialize a valid firewall backend"));
         goto cleanup;
     }
-    if (!firewall || firewall->err == ENOMEM) {
+    if (!firewall) {
         virReportOOMError();
         goto cleanup;
     }
-- 
2.24.1