[libvirt] [PATCH] conf: fix forget restore ctxt->node when parse memory device success

[Daniel P. Berrange]

On Thu, May 21, 2015 at 05:52:01PM +0800, lhuang wrote:
> 
> On 05/21/2015 03:46 PM, Peter Krempa wrote:
> >On Thu, May 21, 2015 at 13:08:12 +0800, Luyao Huang wrote:
> >>https://bugzilla.redhat.com/show_bug.cgi?id=1223631
> >>
> >>When set a memory device in the xml, <sysinfo> in xml will be lost.
> >>Because we forgot restore ctxt->node to the oldnode after parse memory
> >>device, this will make the parse function after virDomainMemoryDefParseXML
> >>cannot find a node they need when parse a full xml(virDomainDefParseXML).
> >The commit message is really hard to read.
> 
> Okay, I will pay more attention about this. Maybe use the exist similar
> commit message as an example will be a good choice.
> 
> >
> >>Signed-off-by: Luyao Huang <lhuang at redhat.com>
> >>---
> >>  src/conf/domain_conf.c | 1 +
> >>  1 file changed, 1 insertion(+)
> >>
> >>diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
> >>index bfdc94e..7ddc1ea 100644
> >>--- a/src/conf/domain_conf.c
> >>+++ b/src/conf/domain_conf.c
> >>@@ -11828,6 +11828,7 @@ virDomainMemoryDefParseXML(xmlNodePtr memdevNode,
> >>      if (virDomainDeviceInfoParseXML(memdevNode, NULL, &def->info, flags) < 0)
> >>          goto error;
> >>+    ctxt->node = save;
> >>      return def;
> >A test case is missing. The bugzilla link contains one so I'll add it.
> 
> Oh, I see, I hesitated about if need introduce a unit test when i fix this
> issue.
> Seems this is a rule about which case need a new test, isn't it? :)

Our rule is that any addition to the XML parser needs to have a test case
added  - especially true if the addition is fixing a parsing bug :-)


Regards,
Daniel
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