[libvirt] [PATCH] tests: teach syntax-check that virDomainDefFree has free-like semantics

[Jim Meyering]

Eric Blake wrote:

> On 03/25/2010 02:56 PM, Jim Meyering wrote:
>> Thanks for highlighting that.
>> Our syntax-check rule should have caught it.
>> With the following change, it does, along with one other:
>>
>>     src/conf/domain_conf.c: if (domain->newDef)
>>                     virDomainDefFree(domain->newDef)
>>     src/test/test_driver.c: if (def)
>>             virDomainDefFree(def)
>>     maint.mk: found useless "if" before "free" above
>>     make: *** [sc_avoid_if_before_free] Error 1
>>
>> This also fixes the one not fixed by Jiri's change.
>
> ACK

Thanks for the review..

I've gone ahead and fixed both violations, so I can push this right away
without breaking syntax-check, rather than having to wait for Jiri's
change to be committed.  Besides, it is more appropriate to keep clean-up
style changes separate from "real" (semantics-changing) ones.

>From 156133597dee6e79768c267b2fb4b5ebff5998f0 Mon Sep 17 00:00:00 2001
From: Jim Meyering <meyering at redhat.com>
Date: Thu, 25 Mar 2010 21:53:29 +0100
Subject: [PATCH] tests: teach syntax-check that virDomainDefFree has free-like semantics

* cfg.mk (useless_free_options): Add virDomainDefFree to the list
of free-like functions.
* src/test/test_driver.c (testDomainCreateXML): Remove useless-if-
before-virDomainDefFree.
* src/conf/domain_conf.c (virDomainAssignDef): Likewise
---
 cfg.mk                 |    1 +
 src/conf/domain_conf.c |    3 +--
 src/test/test_driver.c |    3 +--
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/cfg.mk b/cfg.mk
index 4302338..bf5eae3 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -64,6 +64,7 @@ useless_free_options =		\
   --name=VIR_FREE		\
   --name=xmlFree		\
   --name=xmlXPathFreeContext	\
+  --name=virDomainDefFree	\
   --name=xmlXPathFreeObject

 # Avoid uses of write(2).  Either switch to streams (fwrite), or use
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 22e1679..5519834 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -759,8 +759,7 @@ virDomainObjPtr virDomainAssignDef(virCapsPtr caps,
             virDomainDefFree(domain->def);
             domain->def = def;
         } else {
-            if (domain->newDef)
-                virDomainDefFree(domain->newDef);
+            virDomainDefFree(domain->newDef);
             domain->newDef = def;
         }

diff --git a/src/test/test_driver.c b/src/test/test_driver.c
index f54ebae..fb5c3f6 100644
--- a/src/test/test_driver.c
+++ b/src/test/test_driver.c
@@ -1328,8 +1328,7 @@ cleanup:
         virDomainObjUnlock(dom);
     if (event)
         testDomainEventQueue(privconn, event);
-    if (def)
-        virDomainDefFree(def);
+    virDomainDefFree(def);
     testDriverUnlock(privconn);
     return ret;
 }
--
1.7.0.3.448.g82eeb