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authorSebastian Ott <sebott@linux.vnet.ibm.com>2009-03-26 17:24:08 +0300
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2009-03-26 17:24:13 +0300
commite74fe0cec92439115630b51195444b89b910800a (patch)
tree32ae9fd3fabbf59a50268234b73d3271974fdb91 /drivers/s390
parentc08f294a14cb4c2abbd1a9a619c2d8d07afd41e3 (diff)
downloadlinux-e74fe0cec92439115630b51195444b89b910800a.tar.xz
[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>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/cio/device.c14
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 71b3b73e8ebe..9be6dd5a5664 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -457,12 +457,13 @@ int ccw_device_set_online(struct ccw_device *cdev)
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 @@ static ssize_t online_store (struct device *dev, struct device_attribute *attr,
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 @@ out:
if (cdev->drv)
module_put(cdev->drv->owner);
atomic_set(&cdev->private->onoff, 0);
- return ret;
+ return (ret < 0) ? ret : count;
}
static ssize_t