[libvirt] [PATCH v2] Fix memory leak in virDomainSnapshotDiskDefClear()

While running domainsnapshotxml2xmltest, it was found that valgrind pointed out the following memory leak: ==32176== 42 (32 direct, 10 indirect) bytes in 1 blocks are definitely lost in loss record 42 of 66 ==32176== at 0x4A069EE: malloc (vg_replace_malloc.c:270) ==32176== by 0x4A06B62: realloc (vg_replace_malloc.c:662) ==32176== by 0x4C65A07: virReallocN (viralloc.c:243) ==32176== by 0x4C65B2E: virExpandN (viralloc.c:292) ==32176== by 0x4C65E30: virInsertElementsN (viralloc.c:434) ==32176== by 0x4CD71F3: virDomainDiskSourceDefParse (domain_conf.c:5078) ==32176== by 0x4CF6EF4: virDomainSnapshotDefParseNode (snapshot_conf.c:151) ==32176== by 0x4CF7314: virDomainSnapshotDefParseString (snapshot_conf.c:410) ==32176== by 0x41FB8D: testCompareXMLToXMLHelper (domainsnapshotxml2xmltest.c:100) ==32176== by 0x420FD1: virtTestRun (testutils.c:199) ==32176== by 0x41F859: mymain (domainsnapshotxml2xmltest.c:222) ==32176== by 0x42174D: virtTestMain (testutils.c:782) ==32176== ... and one more. --- v2: Updated based on Ján Tomko's and Peter Krempa's comments. v1: https://www.redhat.com/archives/libvir-list/2014-February/msg01409.html src/conf/snapshot_conf.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/src/conf/snapshot_conf.c b/src/conf/snapshot_conf.c index d70d176..546e5b3 100644 --- a/src/conf/snapshot_conf.c +++ b/src/conf/snapshot_conf.c @@ -82,6 +82,9 @@ virDomainSnapshotDiskDefClear(virDomainSnapshotDiskDefPtr disk) { VIR_FREE(disk->name); VIR_FREE(disk->file); + while (disk->nhosts) + virDomainDiskHostDefClear(&disk->hosts[--disk->nhosts]); + VIR_FREE(disk->hosts); } void virDomainSnapshotDefFree(virDomainSnapshotDefPtr def) -- 1.7.1