From: Aaro Koskinen <aaro.koskinen@nokia.com>
Date: Tue, 24 Feb 2015 16:32:31 +0000 (+0200)
Subject: bootchart: svg: fix checking of list end
X-Git-Tag: v219.0~579
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=c1682f17a0c966988e865c649e565dae41abf32d

bootchart: svg: fix checking of list end

If we have less samples than expected, systemd-bootchart will crash.
---

diff --git a/src/bootchart/svg.c b/src/bootchart/svg.c
index 93b4764ee..e1fc531ba 100644
--- a/src/bootchart/svg.c
+++ b/src/bootchart/svg.c
@@ -1167,7 +1167,7 @@ static void svg_ps_bars(void) {
 
                 ps->sample = ps->sample->next;
                 sample_hz = ps->sample;
-                for (ii=0;((ii<(int)arg_hz/2)&&(ps->sample->next));ii++)
+                for (ii=0;((ii<(int)arg_hz/2)&&(sample_hz->next));ii++)
                         sample_hz = sample_hz->next;
 
                 /* subtract bootchart cpu utilization from total */