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-rw-r--r--src/commonlib/sort.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/commonlib/sort.c b/src/commonlib/sort.c
index 40999397c8..350138ec02 100644
--- a/src/commonlib/sort.c
+++ b/src/commonlib/sort.c
@@ -23,6 +23,10 @@ void bubblesort(int *v, size_t num_entries, sort_order_t order)
size_t i, j;
int swapped;
+ /* Make sure there are at least two entries to sort. */
+ if (num_entries < 2)
+ return;
+
for (j = 0; j < num_entries - 1; j++) {
swapped = 0;
for (i = 0; i < num_entries - j - 1; i++) {