[libvirt] [PATCH] xenFormatXLDomainDisks: avoid double free on OOM testing
From: Wim ten Have <wim.ten.have(a)oracle.com>
Fix xlconfigtest runs build for --enable-test-oom on
Xen XL-2-XML Parse new-disk
#0 0x00007ffff3bd791f in raise () from /lib64/libc.so.6
#1 0x00007ffff3bd951a in abort () from /lib64/libc.so.6
#2 0x00007ffff3c1b200 in __libc_message () from /lib64/libc.so.6
#3 0x00007ffff3c2488a in _int_free () from /lib64/libc.so.6
#4 0x00007ffff3c282bc in free () from /lib64/libc.so.6
#5 0x00007ffff7864fcb in virFree (ptrptr=ptrptr@entry=0x7fffffffd868) at
util/viralloc.c:582
#6 0x00007ffff78776e5 in virConfFreeValue (val=<optimized out>) at
util/virconf.c:178
==> #7 0x0000000000425759 in xenFormatXLDomainDisks (def=0x7fffffffd8c0,
def=0x7fffffffd8c0, conf=0x658220)
at xenconfig/xen_xl.c:1159
#8 xenFormatXL (def=def@entry=0x66ec20, conn=conn@entry=0x668cf0) at
xenconfig/xen_xl.c:1558
#9 0x000000000040ea1d in testCompareParseXML (replaceVars=<optimized out>,
xml=0x65f5e0
"/home/wtenhave/WORK/libvirt/history/libvirt/tests/xlconfigdata/test-fullvirt-ovmf.xml",
xlcfg=0x65f6b0
"/home/wtenhave/WORK/libvirt/history/libvirt/tests/xlconfigdata/test-fullvirt-ovmf.cfg")
at xlconfigtest.c:105
#10 testCompareHelper (data=<optimized out>) at xlconfigtest.c:205
#11 0x000000000041079a in virTestRun (title=title@entry=0x431cf0 "Xen XL-2-XML
Parse fullvirt-ovmf",
body=body@entry=0x40e720 <testCompareHelper>,
data=data@entry=0x7fffffffda50) at testutils.c:247
#12 0x000000000040ebc2 in mymain () at xlconfigtest.c:256
#13 0x0000000000411070 in virTestMain (argc=1, argv=0x7fffffffdc08, func=0x40f2c0
<mymain>) at testutils.c:992
#14 0x00007ffff3bc2401 in __libc_start_main () from /lib64/libc.so.6
#15 0x000000000040e5da in _start ()
symmetry seems missing its sibbling coded functionality
demonstrated under functions;
xenFormatXLUSBController()
xenFormatXLUSB()
xenFormatXLDomainChannels()
xenFormatXMDisks
Signed-off-by: Wim ten Have <wim.ten.have(a)oracle.com>
---
src/xenconfig/xen_xl.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/src/xenconfig/xen_xl.c b/src/xenconfig/xen_xl.c
index 74f68b3..43ecf41 100644
--- a/src/xenconfig/xen_xl.c
+++ b/src/xenconfig/xen_xl.c
@@ -1132,7 +1132,6 @@ xenFormatXLDisk(virConfValuePtr list, virDomainDiskDefPtr disk)
static int
xenFormatXLDomainDisks(virConfPtr conf, virDomainDefPtr def)
{
- int ret = -1;
virConfValuePtr diskVal;
size_t i;
@@ -1150,15 +1149,19 @@ xenFormatXLDomainDisks(virConfPtr conf, virDomainDefPtr def)
goto cleanup;
}
- if (diskVal->list != NULL)
- if (virConfSetValue(conf, "disk", diskVal) == 0)
- diskVal = NULL;
+ if (diskVal->list != NULL) {
+ int ret = virConfSetValue(conf, "disk", diskVal);
+ diskVal = NULL;
+ if (ret < 0)
+ return -1;
+ }
+ VIR_FREE(diskVal);
- ret = 0;
+ return 0;
cleanup:
virConfFreeValue(diskVal);
- return ret;
+ return -1;
}
--
2.9.3