From: Rosen Penev <rosenp@gmail.com>
Date: Wed, 30 Oct 2024 20:37:23 +0000 (-0700)
Subject: net: ibm: emac: zmii: use devm for mutex_init
X-Git-Tag: v6.13-rc1~135^2~152^2~4
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3fb5272de0347da9cc7f8ed8b38e253ca06d664e;p=thirdparty%2Flinux.git

net: ibm: emac: zmii: use devm for mutex_init

It seems that since inception, this driver never called mutex_destroy in
_remove. Use devm to handle this automatically.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20241030203727.6039-9-rosenp@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---

diff --git a/drivers/net/ethernet/ibm/emac/zmii.c b/drivers/net/ethernet/ibm/emac/zmii.c
index e9097b9ceb3dc..cb57c960b34d2 100644
--- a/drivers/net/ethernet/ibm/emac/zmii.c
+++ b/drivers/net/ethernet/ibm/emac/zmii.c
@@ -235,13 +235,17 @@ static int zmii_probe(struct platform_device *ofdev)
 	struct device_node *np = ofdev->dev.of_node;
 	struct zmii_instance *dev;
 	struct resource regs;
+	int err;
 
 	dev = devm_kzalloc(&ofdev->dev, sizeof(struct zmii_instance),
 			   GFP_KERNEL);
 	if (!dev)
 		return -ENOMEM;
 
-	mutex_init(&dev->lock);
+	err = devm_mutex_init(&ofdev->dev, &dev->lock);
+	if (err)
+		return err;
+
 	dev->ofdev = ofdev;
 	dev->mode = PHY_INTERFACE_MODE_NA;