linux-kernel - [PATCH] sparc: vio: use put

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Message-Id: <a3722bda2eadf1ff229f73da6f0316f954956ae1.1524668025.git.arvind.yadav.cs@gmail.com>
Date:   Wed, 25 Apr 2018 20:26:14 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     davem@...emloft.net, shannon.nelson@...cle.com,
        jag.raman@...cle.com, liam.merwick@...cle.com
Cc:     linux-kernel@...r.kernel.org, sparclinux@...r.kernel.org
Subject: [PATCH] sparc: vio: use put_device() instead of kfree()

Never directly free @dev after calling device_register(), even
if it returned an error. Always use put_device() to give up the
reference initialized.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 arch/sparc/kernel/vio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c
index 1a0fa10..32bae68 100644
--- a/arch/sparc/kernel/vio.c
+++ b/arch/sparc/kernel/vio.c
@@ -403,7 +403,7 @@ static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp,
 	if (err) {
 		printk(KERN_ERR "VIO: Could not register device %s, err=%d\n",
 		       dev_name(&vdev->dev), err);
-		kfree(vdev);
+		put_device(&vdev->dev);
 		return NULL;
 	}
 	if (vdev->dp)
-- 
2.7.4