util/error: Fix leak in error_vprepend()

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20170413160952.29918-1-mreitz@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

diff --git a/util/error.c b/util/error.c
index 9c40b1f4586565324c57590c14df607185a83b56..020b86b9f09116a2c2f69ab1673f8653a57e7e67 100644 (file)
--- a/util/error.c
+++ b/util/error.c
@@ -134,6 +134,7 @@ void error_vprepend(Error **errp, const char *fmt, va_list ap)
     newmsg = g_string_new(NULL);
     g_string_vprintf(newmsg, fmt, ap);
     g_string_append(newmsg, (*errp)->msg);
+    g_free((*errp)->msg);
     (*errp)->msg = g_string_free(newmsg, 0);
 }