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-rw-r--r--lib/ccan/tally/tally.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/ccan/tally/tally.c b/lib/ccan/tally/tally.c
index b1839befe3..396474b250 100644
--- a/lib/ccan/tally/tally.c
+++ b/lib/ccan/tally/tally.c
@@ -27,8 +27,8 @@ struct tally *tally_new(unsigned buckets)
if (buckets == 0)
buckets = 1;
- /* Check for overflow. */
- if (buckets && SIZE_MAX / buckets < sizeof(tally->counts[0]))
+ /* Overly cautious check for overflow. */
+ if (sizeof(*tally) * buckets / sizeof(*tally) != buckets)
return NULL;
tally = malloc(sizeof(*tally) + sizeof(tally->counts[0])*(buckets-1));
if (tally) {