[PATCH] pybootchart/draw: Avoid divide by zero error
From: Richard Purdie <hidden>
Date: 2021-05-01 21:50:21
Subsystem:
the rest · Maintainer:
Linus Torvalds
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] Signed-off-by: Richard Purdie <redacted> --- scripts/pybootchartgui/pybootchartgui/draw.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/pybootchartgui/pybootchartgui/draw.py b/scripts/pybootchartgui/pybootchartgui/draw.py
index 53324b9f8bf..29eb7505bc2 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:
--
2.30.2