netdev - [PATCH] can: flexcan: using pm_runtime_resume_and_get instead of pm_runtime_get

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20220419081449.2574026-1-chi.minghao@zte.com.cn>
Date:   Tue, 19 Apr 2022 08:14:49 +0000
From:   cgel.zte@...il.com
To:     wg@...ndegger.com
Cc:     mkl@...gutronix.de, davem@...emloft.net, kuba@...nel.org,
        linux-can@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Minghao Chi <chi.minghao@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH] can: flexcan: using pm_runtime_resume_and_get instead of pm_runtime_get_sync

From: Minghao Chi <chi.minghao@....com.cn>

Using pm_runtime_resume_and_get is more appropriate
for simplifing code

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Minghao Chi <chi.minghao@....com.cn>
---
 drivers/net/can/flexcan/flexcan-core.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/net/can/flexcan/flexcan-core.c b/drivers/net/can/flexcan/flexcan-core.c
index 74d7fcbfd065..459e8aecabd5 100644
--- a/drivers/net/can/flexcan/flexcan-core.c
+++ b/drivers/net/can/flexcan/flexcan-core.c
@@ -723,11 +723,9 @@ static int flexcan_get_berr_counter(const struct net_device *dev,
 	const struct flexcan_priv *priv = netdev_priv(dev);
 	int err;
 
-	err = pm_runtime_get_sync(priv->dev);
-	if (err < 0) {
-		pm_runtime_put_noidle(priv->dev);
+	err = pm_runtime_resume_and_get(priv->dev);
+	if (err < 0)
 		return err;
-	}
 
 	err = __flexcan_get_berr_counter(dev, bec);
 
@@ -1700,11 +1698,9 @@ static int flexcan_open(struct net_device *dev)
 		return -EINVAL;
 	}
 
-	err = pm_runtime_get_sync(priv->dev);
-	if (err < 0) {
-		pm_runtime_put_noidle(priv->dev);
+	err = pm_runtime_resume_and_get(priv->dev);
+	if (err < 0)
 		return err;
-	}
 
 	err = open_candev(dev);
 	if (err)
-- 
2.25.1