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[libvirt] [PATCH] qemu_command: Fix memleak in qemuBuildFloppyCommandLineControllerOptions



Even though the buffer is passed to virCommand we still need to
free it.

==191201== 1,010 bytes in 1 blocks are definitely lost in loss record 826 of 836
==191201==    at 0x4C2CE3F: malloc (vg_replace_malloc.c:298)
==191201==    by 0x4C2F1BF: realloc (vg_replace_malloc.c:785)
==191201==    by 0x5D39E82: virReallocN (viralloc.c:245)
==191201==    by 0x5D3E8F2: virBufferGrow (virbuffer.c:150)
==191201==    by 0x5D3E9C8: virBufferAdd (virbuffer.c:185)
==191201==    by 0x56EAC98: qemuBuildFloppyCommandLineControllerOptions (qemu_command.c:2162)
==191201==    by 0x56EB3E1: qemuBuildDisksCommandLine (qemu_command.c:2370)
==191201==    by 0x570055E: qemuBuildCommandLine (qemu_command.c:10315)
==191201==    by 0x575EA7F: qemuProcessCreatePretendCmd (qemu_process.c:6777)
==191201==    by 0x113DAB: testCompareXMLToArgv (qemuxml2argvtest.c:598)
==191201==    by 0x13A75B: virTestRun (testutils.c:180)
==191201==    by 0x138BE8: mymain (qemuxml2argvtest.c:2975)

Signed-off-by: Michal Privoznik <mprivozn redhat com>
---
 src/qemu/qemu_command.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index ddb90895e0..96fc360f4a 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -2225,6 +2225,7 @@ qemuBuildFloppyCommandLineControllerOptions(virCommandPtr cmd,
     VIR_FREE(backendAlias);
     VIR_FREE(backendStr);
     VIR_FREE(bootindexStr);
+    virBufferFreeAndReset(&fdc_opts);
     return ret;
 }
 
-- 
2.16.4


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