Staging: hv: check return value of bus_register()

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c
index 74419a7eb32d3b35379b9145f969deb3599d1b88..cede0ace9ad5bcb5763a4944b9b1b0afc33fc40a 100644 (file)
--- a/drivers/staging/hv/vmbus_drv.c
+++ b/drivers/staging/hv/vmbus_drv.c
@@ -380,7 +380,12 @@ int vmbus_bus_init(PFN_DRIVERINITIALIZE pfn_drv_init)
        tasklet_init(&vmbus_drv_ctx->event_dpc, vmbus_event_dpc, (unsigned long)vmbus_drv_obj);
 
        /* Now, register the bus driver with LDM */
-       bus_register(&vmbus_drv_ctx->bus);
+       ret = bus_register(&vmbus_drv_ctx->bus);
+       if (ret)
+       {
+               ret = -1;
+               goto cleanup;
+       }
 
        /* Get the interrupt resource */
        ret = request_irq(vmbus_irq,