linux-kernel - [PATCH 07/10] staging: r8188eu: improve timeout handling in LPS_RF_ON

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Message-Id: <20220409163212.241122-8-martin@kaiser.cx>
Date:   Sat,  9 Apr 2022 18:32:09 +0200
From:   Martin Kaiser <martin@...ser.cx>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Michael Straube <straube.linux@...il.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Martin Kaiser <martin@...ser.cx>
Subject: [PATCH 07/10] staging: r8188eu: improve timeout handling in LPS_RF_ON_check

Use the standard kernel functions to define and check the timeout in
LPS_RF_ON_check.

Signed-off-by: Martin Kaiser <martin@...ser.cx>
---
 drivers/staging/r8188eu/core/rtw_pwrctrl.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_pwrctrl.c b/drivers/staging/r8188eu/core/rtw_pwrctrl.c
index ffafeb7f9c47..1aebf9400f12 100644
--- a/drivers/staging/r8188eu/core/rtw_pwrctrl.c
+++ b/drivers/staging/r8188eu/core/rtw_pwrctrl.c
@@ -239,10 +239,9 @@ static bool lps_rf_on(struct adapter *adapter)
  */
 static s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms)
 {
-	u32 start_time;
+	unsigned long timeout = jiffies + msecs_to_jiffies(delay_ms);
 	s32 err = 0;
 
-	start_time = jiffies;
 	while (1) {
 		if (lps_rf_on(padapter))
 			break;
@@ -252,7 +251,7 @@ static s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms)
 			break;
 		}
 
-		if (rtw_get_passing_time_ms(start_time) > delay_ms) {
+		if (time_after(jiffies, timeout)) {
 			err = -1;
 			break;
 		}
-- 
2.30.2