Drivers: hv: Fix a memory leak

There was a memory leak in a failure path in vmbus_process_offer().
Fix it.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 12b85ff..b91af50 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -287,6 +287,7 @@
 		spin_lock_irqsave(&vmbus_connection.channel_lock, flags);
 		list_del(&newchannel->listentry);
 		spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags);
+		kfree(newchannel->device_obj);
 
 		free_channel(newchannel);
 	} else {