[libvirt] [PATCH] linuxNodeInfoCPUPopulate: avoid used-uninitialized via a test

See the comment: From: Jim Meyering <meyering(a)redhat.com&gt; Date: Tue, 18 May 2010 11:58:32 +0200 Subject: [PATCH] linuxNodeInfoCPUPopulate: avoid used-uninitialized via a test * tests/nodeinfotest.c (linuxTestCompareFiles): Don't use nodeinfo->member uninitialized. linuxNodeInfoCPUPopulate requires that some of its nodeinfo members (including threads) be initialized upon input. The nodeinfotest.c program lacked the initialization, while the only other use (nodeGetInfo) did perform it. It's not trivial to move the initialization into the function, since nodeGetInfo sets at least one member after clearing the buffer but before calling linuxNodeInfoCPUPopulate. --- tests/nodeinfotest.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/tests/nodeinfotest.c b/tests/nodeinfotest.c index 9aeb459..cb92215 100644 --- a/tests/nodeinfotest.c +++ b/tests/nodeinfotest.c @@ -40,6 +40,8 @@ static int linuxTestCompareFiles(const char *cpuinfofile, const char *outputfile cpuinfo = fopen(cpuinfofile, "r"); if (!cpuinfo) return -1; + + memset(nodeinfo, 0, sizeof(*nodeinfo)); if (linuxNodeInfoCPUPopulate(cpuinfo, &nodeinfo) < 0) { fclose(cpuinfo); return -1; -- 1.7.1.250.g7d1e8