linux-kernel - [PATCH] vmbus: use put_device() if device

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Date:   Sun, 18 Mar 2018 12:18:02 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     sthemmin@...rosoft.com, haiyangz@...rosoft.com
Cc:     linux-kernel@...r.kernel.org, devel@...uxdriverproject.org
Subject: [PATCH] vmbus: use put_device() if device_register fail

if device_register() returned an error. Always use put_device()
to give up the reference initialized.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/hv/vmbus_drv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index bc65c4d..25da2f3 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -1358,6 +1358,7 @@ int vmbus_device_register(struct hv_device *child_device_obj)
 	ret = device_register(&child_device_obj->device);
 	if (ret) {
 		pr_err("Unable to register child device\n");
+		put_device(&child_device_obj->device);
 		return ret;
 	}
 
-- 
2.7.4