[libvirt] [PATCH] tests: plug memory leak on linuxTestNodeInfo

[ajia at redhat.com]

From: Alex Jia <ajia at redhat.com>

Detected by valgrind. Leak introduced in commit 82ff25e.

* tests/nodeinfotest.c: avoid memory leak on nodeinfo test case.

* how to reproduce?
  % cd tests && valgrind -v --leak-check=full ./nodeinfotest

* actual valgrind result:

==22147== 65 bytes in 1 blocks are definitely lost in loss record 14 of 29
==22147==    at 0x4A0610F: realloc (vg_replace_malloc.c:525)
==22147==    by 0x330D6FED94: __vasprintf_chk (in /lib64/libc-2.12.so)
==22147==    by 0x426697: virVasprintf (stdio2.h:199)
==22147==    by 0x426757: virAsprintf (util.c:1695)
==22147==    by 0x41585F: linuxTestNodeInfo (nodeinfotest.c:108)
==22147==    by 0x416B21: virtTestRun (testutils.c:141)
==22147==    by 0x4157EA: mymain (nodeinfotest.c:140)
==22147==    by 0x416217: virtTestMain (testutils.c:696)
==22147==    by 0x330D61ECDC: (below main) (in /lib64/libc-2.12.so)
==22147== 
==22147== LEAK SUMMARY:
==22147==    definitely lost: 65 bytes in 1 blocks
==22147==    indirectly lost: 0 bytes in 0 blocks
==22147==      possibly lost: 0 bytes in 0 blocks
==22147==    still reachable: 126,126 bytes in 1,341 blocks


Signed-off-by: Alex Jia <ajia at redhat.com>
---
 tests/nodeinfotest.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/tests/nodeinfotest.c b/tests/nodeinfotest.c
index 74f7b47..0952a6b 100644
--- a/tests/nodeinfotest.c
+++ b/tests/nodeinfotest.c
@@ -119,6 +119,7 @@ linuxTestNodeInfo(const void *data)
 cleanup:
     free(cpuinfo);
     free(output);
+    free(sysfs_cpuinfo);
 
     return result;
 }
-- 
1.7.1