[libvirt] [PATCH 1/2] virLogHostnameString: Don't leak hostname

[Michal Privoznik]

Once @hostname is printed into @hoststr we don't need it anymore.

==6879== 5 bytes in 1 blocks are definitely lost in loss record 10 of 1,064
==6879==    at 0x4C29F80: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==6879==    by 0xA7ED599: strdup (in /lib64/libc-2.21.so)
==6879==    by 0x552C126: virStrdup (virstring.c:726)
==6879==    by 0x553B13E: virGetHostnameImpl (virutil.c:720)
==6879==    by 0x553B1BF: virGetHostnameQuiet (virutil.c:741)
==6879==    by 0x54FA3FD: virLogHostnameString (virlog.c:462)
==6879==    by 0x54FAB0F: virLogVMessage (virlog.c:645)
==6879==    by 0x54FA680: virLogMessage (virlog.c:531)
==6879==    by 0x54FBBF4: virLogParseOutputs (virlog.c:1130)
==6879==    by 0x11CB4F: daemonSetupLogging (libvirtd.c:685)
==6879==    by 0x11E137: main (libvirtd.c:1297)

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

diff --git a/src/util/virlog.c b/src/util/virlog.c
index 7d5a266..ecb1024 100644
--- a/src/util/virlog.c
+++ b/src/util/virlog.c
@@ -469,6 +469,7 @@ virLogHostnameString(const char **rawmsg,
         VIR_FREE(hostname);
         return -1;
     }
+    VIR_FREE(hostname);
 
     if (virLogFormatString(msg, 0, NULL, VIR_LOG_INFO, hoststr) < 0) {
         VIR_FREE(hoststr);
-- 
2.4.10