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authorRichard Purdie <richard.purdie@linuxfoundation.org>2021-05-01 12:25:55 +0100
committerRichard Purdie <richard.purdie@linuxfoundation.org>2021-05-11 12:02:29 +0100
commite4068c53596874f719e5d9271fb8d1aa194b3e3b (patch)
tree5644a7c17c9eb4b0120eb4445de111f319798ae1
parent7e61f58125c7fb5f38ae8d170164be2016c399ef (diff)
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pybootchart/draw: Avoid divide by zero error
When disk stats don't run frequenctly enough, we see divide by zero errors. The code already has a fallback path so ensure we use it for this case too. [YOCTO #14360] (From OE-Core rev: f9d9f0333bd7c590eb1307c429d43408abffeb00) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> (cherry picked from commit b71d30aef5dc2c360432c0dd4147859dd303ea48) Signed-off-by: Anuj Mittal <anuj.mittal@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--scripts/pybootchartgui/pybootchartgui/draw.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/pybootchartgui/pybootchartgui/draw.py b/scripts/pybootchartgui/pybootchartgui/draw.py
index 53324b9f8b..29eb7505bc 100644
--- a/scripts/pybootchartgui/pybootchartgui/draw.py
+++ b/scripts/pybootchartgui/pybootchartgui/draw.py
@@ -271,7 +271,7 @@ def draw_chart(ctx, color, fill, chart_bounds, data, proc_tree, data_range):
# If data_range is given, scale the chart so that the value range in
# data_range matches the chart bounds exactly.
# Otherwise, scale so that the actual data matches the chart bounds.
- if data_range:
+ if data_range and (data_range[1] - data_range[0]):
yscale = float(chart_bounds[3]) / (data_range[1] - data_range[0])
ybase = data_range[0]
else: