linux-kernel - [PATCH 1/4] base: soc: use put

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Message-Id: <9acdde3143458faf8cdc5cf6eae08c3c306bf025.1520747459.git.arvind.yadav.cs@gmail.com>
Date:   Sun, 11 Mar 2018 11:25:48 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] base: soc: 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>
---
 drivers/base/soc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/base/soc.c b/drivers/base/soc.c
index 4e80f48..10b280f 100644
--- a/drivers/base/soc.c
+++ b/drivers/base/soc.c
@@ -150,6 +150,8 @@ struct soc_device *soc_device_register(struct soc_device_attribute *soc_dev_attr
 
 out3:
 	ida_simple_remove(&soc_ida, soc_dev->soc_dev_num);
+	put_device(&soc_dev->dev);
+	soc_dev = NULL;
 out2:
 	kfree(soc_dev);
 out1:
-- 
2.7.4