[S390] cio: ccw device online store - report rc from ccw driver.
In case the ccw driver refuses to set a device offline, we should
transmit the return code to the caller.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 71b3b73..9be6dd5 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -457,12 +457,13 @@
return (ret == 0) ? -ENODEV : ret;
}
-static void online_store_handle_offline(struct ccw_device *cdev)
+static int online_store_handle_offline(struct ccw_device *cdev)
{
if (cdev->private->state == DEV_STATE_DISCONNECTED)
ccw_device_remove_disconnected(cdev);
- else if (cdev->drv && cdev->drv->set_offline)
- ccw_device_set_offline(cdev);
+ else if (cdev->online && cdev->drv && cdev->drv->set_offline)
+ return ccw_device_set_offline(cdev);
+ return 0;
}
static int online_store_recog_and_online(struct ccw_device *cdev)
@@ -530,13 +531,10 @@
goto out;
switch (i) {
case 0:
- online_store_handle_offline(cdev);
- ret = count;
+ ret = online_store_handle_offline(cdev);
break;
case 1:
ret = online_store_handle_online(cdev, force);
- if (!ret)
- ret = count;
break;
default:
ret = -EINVAL;
@@ -545,7 +543,7 @@
if (cdev->drv)
module_put(cdev->drv->owner);
atomic_set(&cdev->private->onoff, 0);
- return ret;
+ return (ret < 0) ? ret : count;
}
static ssize_t