linux-kernel - [PATCH 12/25] Staging: hv: Cleanup error handling in vmbus_child_device

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Date:	Tue, 26 Apr 2011 09:20:29 -0700
From:	"K. Y. Srinivasan" <kys@...rosoft.com>
To:	gregkh@...e.de, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, virtualization@...ts.osdl.org
Cc:	"K. Y. Srinivasan" <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	Abhishek Kane <v-abkane@...rosoft.com>,
	Hank Janssen <hjanssen@...rosoft.com>
Subject: [PATCH 12/25] Staging: hv: Cleanup error handling in vmbus_child_device_register()

Cleanup error handling in vmbus_child_device_register().

Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
Signed-off-by: Abhishek Kane <v-abkane@...rosoft.com>
Signed-off-by: Hank Janssen <hjanssen@...rosoft.com>
---
 drivers/staging/hv/vmbus_drv.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c
index d597dd4..4d569ad 100644
--- a/drivers/staging/hv/vmbus_drv.c
+++ b/drivers/staging/hv/vmbus_drv.c
@@ -720,11 +720,16 @@ int vmbus_child_device_register(struct hv_device *child_device_obj)
 	 */
 	ret = device_register(&child_device_obj->device);
 
+	if (ret)
+		return ret;
+
 	/* vmbus_probe() error does not get propergate to device_register(). */
 	ret = child_device_obj->probe_error;
 
-	if (ret)
+	if (ret) {
 		pr_err("Unable to register child device\n");
+		device_unregister(&child_device_obj->device);
+	}
 	else
 		pr_info("child device %s registered\n",
 			dev_name(&child_device_obj->device));
-- 
1.7.4.1

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