Does this middleware (DefaultDecompressHandle) handle gzip.Close() correctly?

[arianitu]

I'm looking at the code here:

func DefaultDecompressHandle(c *gin.Context) {
	if c.Request.Body == nil {
		return
	}
	r, err := gzip.NewReader(c.Request.Body)
	if err != nil {
		c.AbortWithError(http.StatusBadRequest, err)
		return
	}
	c.Request.Header.Del("Content-Encoding")
	c.Request.Header.Del("Content-Length")
	c.Request.Body = r
}

I don't see a close on the gzip.NewReader which the documentation says should be called. Is this handling close correctly?