Drivers: hv: vmbus: introduce vmbus_acpi_remove

[firefly-linux-kernel-4.4.55.git] / drivers / hv / vmbus_drv.c

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index c85235e9f245b6d210384673168bef12c6f9f0de..0d8d1d79408c0e15d2ede8848472c2f2c1f702bd 100644 (file)
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -1035,6 +1035,15 @@ acpi_walk_err:
        return ret_val;
 }
 
+static int vmbus_acpi_remove(struct acpi_device *device)
+{
+       int ret = 0;
+
+       if (hyperv_mmio.start && hyperv_mmio.end)
+               ret = release_resource(&hyperv_mmio);
+       return ret;
+}
+
 static const struct acpi_device_id vmbus_acpi_device_ids[] = {
        {"VMBUS", 0},
        {"VMBus", 0},
@@ -1047,6 +1056,7 @@ static struct acpi_driver vmbus_acpi_driver = {
        .ids = vmbus_acpi_device_ids,
        .ops = {
                .add = vmbus_acpi_add,
+               .remove = vmbus_acpi_remove,
        },
 };