Drivers: hv: vmbus: fix possible memory leak in vmbus_device_register()
If device_register() returns error in vmbus_device_register(),
the name allocated by dev_set_name() must be freed. As comment
of device_register() says, it should use put_device() to give
up the reference in the error path. So fix this by calling
put_device(), then the name can be freed in kobject_cleanup().
Fixes: 09d50ff8a2
("Staging: hv: make the Hyper-V virtual bus code build")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20221119081135.1564691-3-yangyingliang@huawei.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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@ -2082,6 +2082,7 @@ int vmbus_device_register(struct hv_device *child_device_obj)
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ret = device_register(&child_device_obj->device);
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if (ret) {
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pr_err("Unable to register child device\n");
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put_device(&child_device_obj->device);
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return ret;
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}
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