[PATCH 7/8] Staging: hv: vmbus: Fix a bug in error handling in vmbus_bus_init()

["K. Y. Srinivasan" <kys@microsoft.com>]

Fix a bug in error handling in vmbus_bus_init().

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
---
 drivers/staging/hv/vmbus_drv.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c
index f20ab9a..0b0bff3 100644
--- a/drivers/staging/hv/vmbus_drv.c
+++ b/drivers/staging/hv/vmbus_drv.c
@@ -463,8 +463,10 @@ static int vmbus_bus_init(int irq)
 	tasklet_init(&event_dpc, vmbus_on_event, 0);
 
 	ret = bus_register(&hv_bus);
-	if (ret)
+	if (ret) {
+		hv_cleanup();
 		return ret;
+	}
 
 	ret = request_irq(irq, vmbus_isr, IRQF_SAMPLE_RANDOM,
 			driver_name, hv_acpi_dev);
@@ -473,6 +475,7 @@ static int vmbus_bus_init(int irq)
 		pr_err("Unable to request IRQ %d\n",
 			   irq);
 
+		hv_cleanup();
 		bus_unregister(&hv_bus);
 
 		return ret;
@@ -487,6 +490,7 @@ static int vmbus_bus_init(int irq)
 	on_each_cpu(hv_synic_init, (void *)&vector, 1);
 	ret = vmbus_connect();
 	if (ret) {
+		hv_cleanup();
 		free_irq(irq, hv_acpi_dev);
 		bus_unregister(&hv_bus);
 		return ret;
-- 
1.7.4.1