net: ibm: emac: tah: use devm for kzalloc

Simplifies the probe function by removing gotos.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20241030203727.6039-2-rosenp@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/ibm/emac/tah.c b/drivers/net/ethernet/ibm/emac/tah.c
index c605c8ff933eba83ab599093b97b1fe4080d31f0..267c23ec15d7171978a20b69cb3cfc2bcc076c25 100644 (file)
--- a/drivers/net/ethernet/ibm/emac/tah.c
+++ b/drivers/net/ethernet/ibm/emac/tah.c
@@ -90,28 +90,25 @@ static int tah_probe(struct platform_device *ofdev)
        struct device_node *np = ofdev->dev.of_node;
        struct tah_instance *dev;
        struct resource regs;
-       int rc;
 
-       rc = -ENOMEM;
-       dev = kzalloc(sizeof(struct tah_instance), GFP_KERNEL);
-       if (dev == NULL)
-               goto err_gone;
+       dev = devm_kzalloc(&ofdev->dev, sizeof(struct tah_instance),
+                          GFP_KERNEL);
+       if (!dev)
+               return -ENOMEM;
 
        mutex_init(&dev->lock);
        dev->ofdev = ofdev;
 
-       rc = -ENXIO;
        if (of_address_to_resource(np, 0, &regs)) {
                printk(KERN_ERR "%pOF: Can't get registers address\n", np);
-               goto err_free;
+               return -ENXIO;
        }
 
-       rc = -ENOMEM;
        dev->base = (struct tah_regs __iomem *)ioremap(regs.start,
                                               sizeof(struct tah_regs));
        if (dev->base == NULL) {
                printk(KERN_ERR "%pOF: Can't map device registers!\n", np);
-               goto err_free;
+               return -ENOMEM;
        }
 
        platform_set_drvdata(ofdev, dev);
@@ -123,11 +120,6 @@ static int tah_probe(struct platform_device *ofdev)
        wmb();
 
        return 0;
-
- err_free:
-       kfree(dev);
- err_gone:
-       return rc;
 }
 
 static void tah_remove(struct platform_device *ofdev)
@@ -137,7 +129,6 @@ static void tah_remove(struct platform_device *ofdev)
        WARN_ON(dev->users != 0);
 
        iounmap(dev->base);
-       kfree(dev);
 }
 
 static const struct of_device_id tah_match[] =