Staging: hv: Remove probe_error from vm_device

In preparation for consolidating all device related state into
struct hv_device, move probe_error from vm_device to
hv_device.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/vmbus.h

@@ -32,7 +32,6 @@
 struct vm_device {
 	struct hv_guid class_id;
 	struct hv_guid device_id;
-	int probe_error;
 	struct hv_device device_obj;
 	struct device device;
 };

drivers/staging/hv/vmbus_api.h

@@ -120,6 +120,8 @@ struct hv_device {
 
 	struct work_struct probe_failed_work_item;
 
+	int probe_error;
+
 	/* the device type id of this device */
 	struct hv_guid dev_type;
 

drivers/staging/hv/vmbus_drv.c

@@ -742,7 +742,7 @@ int vmbus_child_device_register(struct hv_device *root_device_obj,
 	ret = device_register(&child_device_ctx->device);
 
 	/* vmbus_probe() error does not get propergate to device_register(). */
-	ret = child_device_ctx->probe_error;
+	ret = child_device_ctx->device_obj.probe_error;
 
 	if (ret)
 		DPRINT_ERR(VMBUS_DRV, "unable to register child device (%p)",
@@ -908,7 +908,7 @@ static int vmbus_probe(struct device *child_device)
 
 	/* Let the specific open-source driver handles the probe if it can */
 	if (drv->driver.probe) {
-		ret = device_ctx->probe_error =
+		ret = device_ctx->device_obj.probe_error =
 		drv->driver.probe(child_device);
 		if (ret != 0) {
 			DPRINT_ERR(VMBUS_DRV, "probe() failed for device %s "