Fix some segfaults

[can-benchmark.git] / latester / histogram.h

diff --git a/latester/histogram.h b/latester/histogram.h
index 64dcb2220804d0ab75c11783735f49b33ee9723f..80d629e32d4a9518c90884d54bfabdde3847863a 100644 (file)
--- a/latester/histogram.h
+++ b/latester/histogram.h
@@ -36,6 +36,10 @@ void histogram_fprint(struct histogram *h, FILE *f)
 {
        unsigned long long sum = 0, cum;
        unsigned i;
+
+       if (!f)
+               return;
+
        for (i = 0; i < h->allocated; i++)
                sum += h->data[i];
        cum = sum;