From: Benjamin Gilbert <bgilbert@cs.cmu.edu>
Date: Wed, 16 Apr 2014 20:27:07 +0000 (-0400)
Subject: lvm: Fix segfault if a VG contains no LVs
X-Git-Tag: collectd-5.5.0~232^2~3
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=45805cf888cda0e840d774f1d42cd21525a722ea;p=collectd.git

lvm: Fix segfault if a VG contains no LVs
---

diff --git a/src/lvm.c b/src/lvm.c
index 97d80170..cbf244b3 100644
--- a/src/lvm.c
+++ b/src/lvm.c
@@ -119,6 +119,8 @@ static void vg_read(vg_t vg, char const *vg_name)
     lvm_submit (vg_name, "free", lvm_vg_get_free_size(vg));
 
     lvs = lvm_vg_list_lvs(vg);
+    if (lvs == NULL)
+        return;
     dm_list_iterate_items(lvl, lvs) {
         name = lvm_lv_get_name(lvl->lv);
         attrs = lvm_lv_get_attr(lvl->lv);