[PATCH 41/46] Staging: hv: vmbus: Fix a bug in error handling in vmbus_bus_init()

K. Y. Srinivasan
2011-08-27T18:12:16Z

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 | 21 ++++++++++-----------
1 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c
index 02edb11..4d1b123 100644
--- a/drivers/staging/hv/vmbus_drv.c
+++ b/drivers/staging/hv/vmbus_drv.c
@@ -492,7 +492,7 @@ static int vmbus_bus_init(int irq)

ret = bus_register(&hv_bus);
if (ret)
- return ret;
+ goto err1;

ret = request_irq(irq, vmbus_isr, IRQF_SAMPLE_RANDOM,
driver_name, hv_acpi_dev);
@@ -500,10 +500,7 @@ static int vmbus_bus_init(int irq)
if (ret != 0) {
pr_err("Unable to request IRQ %d\n",
irq);
-
- bus_unregister(&hv_bus);
-
- return ret;
+ goto err2;
}

vector = IRQ0_VECTOR + irq;
@@ -514,16 +511,18 @@ static int vmbus_bus_init(int irq)
*/
on_each_cpu(hv_synic_init, (void *)&vector, 1);
ret = vmbus_connect();
- if (ret) {
- free_irq(irq, hv_acpi_dev);
- bus_unregister(&hv_bus);
- return ret;
- }
-
+ if (ret)
+ goto err3;

vmbus_request_offers();

return 0;
+
+err3: free_irq(irq, hv_acpi_dev);
+err2: bus_unregister(&hv_bus);
+err1: hv_cleanup();
+
+ return ret;
}

/**
--
1.7.4.1