linux-kernel - [PATCH] media: si21xx: use time_after

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Message-Id: <1644481917-14908-1-git-send-email-wangqing@vivo.com>
Date:   Thu, 10 Feb 2022 00:31:57 -0800
From:   Qing Wang <wangqing@...o.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Wang Qing <wangqing@...o.com>
Subject: [PATCH] media: si21xx: use time_after_eq() instead of jiffies judgment

From: Wang Qing <wangqing@...o.com>

It is better to use time_xxx() directly instead of jiffies judgment
for understanding.

Signed-off-by: Wang Qing <wangqing@...o.com>
---
 drivers/media/dvb-frontends/si21xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/dvb-frontends/si21xx.c b/drivers/media/dvb-frontends/si21xx.c
index 001b235..1c6cf76
--- a/drivers/media/dvb-frontends/si21xx.c
+++ b/drivers/media/dvb-frontends/si21xx.c
@@ -336,7 +336,7 @@ static int si21xx_wait_diseqc_idle(struct si21xx_state *state, int timeout)
 	dprintk("%s\n", __func__);
 
 	while ((si21_readreg(state, LNB_CTRL_REG_1) & 0x8) == 8) {
-		if (jiffies - start > timeout) {
+		if (time_after(jiffies, start + timeout)) {
 			dprintk("%s: timeout!!\n", __func__);
 			return -ETIMEDOUT;
 		}
-- 
2.7.4