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From 7bfd3d12b0886983dc96d451fc68e9d99badc412 Mon Sep 17 00:00:00 2001
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Message-Id: <7bfd3d12b0886983dc96d451fc68e9d99badc412@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Wed, 26 Feb 2014 14:54:10 +0100
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Subject: [PATCH] conf: Refactor virDomainDiskSourcePoolDefParse
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https://bugzilla.redhat.com/show_bug.cgi?id=1032370
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For some strange reason virDomainDiskSourcePoolDefParse accessed def of
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the disk and allocated the pool object in it. To avoid the need to carry
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over the disk definition object, refactor this function to return the
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allocated object instead.
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(cherry picked from commit 6e037015a41a31534aca5fde207dc81b94497456)
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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---
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 src/conf/domain_conf.c | 41 ++++++++++++++++++++---------------------
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 1 file changed, 20 insertions(+), 21 deletions(-)
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diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
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index 9456758..96185ca 100644
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--- a/src/conf/domain_conf.c
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+++ b/src/conf/domain_conf.c
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@@ -4785,49 +4785,48 @@ cleanup:
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 static int
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 virDomainDiskSourcePoolDefParse(xmlNodePtr node,
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-                                virDomainDiskDefPtr def)
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+                                virDomainDiskSourcePoolDefPtr *srcpool)
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 {
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-    char *pool = NULL;
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-    char *volume = NULL;
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     char *mode = NULL;
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+    virDomainDiskSourcePoolDefPtr source;
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     int ret = -1;
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-    pool = virXMLPropString(node, "pool");
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-    volume = virXMLPropString(node, "volume");
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+    *srcpool = NULL;
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+
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+    if (VIR_ALLOC(source) < 0)
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+        return -1;
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+
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+    source->pool = virXMLPropString(node, "pool");
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+    source->volume = virXMLPropString(node, "volume");
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     mode = virXMLPropString(node, "mode");
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     /* CD-ROM and Floppy allows no source */
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-    if (!pool && !volume)
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-        return 0;
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+    if (!source->pool && !source->volume) {
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+        ret = 0;
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+        goto cleanup;
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+    }
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-    if (!pool || !volume) {
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+    if (!source->pool || !source->volume) {
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         virReportError(VIR_ERR_XML_ERROR, "%s",
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                        _("'pool' and 'volume' must be specified together "
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                          "for 'pool' type source"));
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         goto cleanup;
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     }
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-    if (VIR_ALLOC(def->srcpool) < 0)
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-        goto cleanup;
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-
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-    if (mode && (def->srcpool->mode =
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-                 virDomainDiskSourcePoolModeTypeFromString(mode)) <= 0) {
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+    if (mode &&
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+        (source->mode = virDomainDiskSourcePoolModeTypeFromString(mode)) <= 0) {
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         virReportError(VIR_ERR_XML_ERROR,
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                        _("unknown source mode '%s' for volume type disk"),
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                        mode);
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         goto cleanup;
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     }
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-    def->srcpool->pool = pool;
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-    pool = NULL;
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-    def->srcpool->volume = volume;
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-    volume = NULL;
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-
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+    *srcpool = source;
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+    source = NULL;
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     ret = 0;
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 cleanup:
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-    VIR_FREE(pool);
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-    VIR_FREE(volume);
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+    virDomainDiskSourcePoolDefFree(source);
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     VIR_FREE(mode);
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     return ret;
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 }
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@@ -5017,7 +5016,7 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt,
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                     }
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                     break;
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                 case VIR_DOMAIN_DISK_TYPE_VOLUME:
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-                    if (virDomainDiskSourcePoolDefParse(cur, def) < 0)
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+                    if (virDomainDiskSourcePoolDefParse(cur, &def->srcpool) < 0)
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                         goto error;
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                     break;
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                 default:
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-- 
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1.9.0
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