don't allow jitter to create a negative backoff, avoids panic

decred · Jan 27, 2025 · b597226 · b597226
1 parent 4803538
commit b597226
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/spv/sync.go b/spv/sync.go
@@ -654,7 +654,11 @@ func (s *Syncer) connectToPersistent(ctx context.Context, raddr string) error {
 		// Persistent peers use a backoff duration scaled to 1/5th of
 		// discovered candidate peers (min 5s -> 1s, max 1m30s -> 18s).
 		jitter := backoffJitter()
-		connected := s.connectAndRunPeer(ctx, d/5+jitter, raddr, true)
+		scaledBackoff := d / 5
+		if scaledBackoff != 0 {
+			scaledBackoff += jitter
+		}
+		connected := s.connectAndRunPeer(ctx, scaledBackoff, raddr, true)
 		if err := ctx.Err(); err != nil {
 			return err
 		}