Update redis.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

redis.go

@@ -415,11 +415,12 @@ func (c *baseClient) initConn(ctx context.Context, cn *pool.Conn) error {
 					} else {
 						// DialTimeout is shorter, cap the wait at DialTimeout
 						waitCtx, cancel = context.WithTimeout(ctx, dialTimeout)
-						defer cancel()
 					}
 				} else {
 					// No command deadline, use DialTimeout to prevent waiting indefinitely
 					waitCtx, cancel = context.WithTimeout(ctx, dialTimeout)
+				}
+				if cancel != nil {
 					defer cancel()
 				}