Author: Wei Yongjun <yongjun_wei@trendmicro.com.cn> The memory return by kzalloc() or kmem_cache_zalloc() has already be set to zero, so remove useless memset(0). spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun Signed-off-by: Greg Kroah-Hartman — drivers/usb/serial/cp210x.c | 1 – 1 file changed, 1 deletion(-) diff –git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index …