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authorHorst Hummel <horst.hummel@de.ibm.com>2005-05-16 21:53:39 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-17 07:59:17 -0700
commit59afda786a58f2e8f74a48f2af90534d76d5338d (patch)
tree24095750e7bbb68675573af6649c814e6f69c4b4 /drivers
parent53b21689ba567ad437e4d7917dd9da54a8d6fd5c (diff)
[PATCH] s390: dasd set online failure
dasd driver changes: - The feature check in dasd_generic_online returns an error if the devmap entry for the device is not yet available. Check for the feature after the device has been created. - Do symmetric registration/deregistration of cdev->handler. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/s390/block/dasd.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 02cfe244e06..ceeb3cf64a1 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -7,7 +7,7 @@
* Bugreports.to..: <Linux390@de.ibm.com>
* (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999-2001
*
- * $Revision: 1.161 $
+ * $Revision: 1.164 $
*/
#include <linux/config.h>
@@ -1766,10 +1766,10 @@ dasd_generic_probe (struct ccw_device *cdev,
printk(KERN_WARNING
"dasd_generic_probe: could not add sysfs entries "
"for %s\n", cdev->dev.bus_id);
+ } else {
+ cdev->handler = &dasd_int_handler;
}
- cdev->handler = &dasd_int_handler;
-
return ret;
}
@@ -1780,6 +1780,8 @@ dasd_generic_remove (struct ccw_device *cdev)
{
struct dasd_device *device;
+ cdev->handler = NULL;
+
dasd_remove_sysfs_files(cdev);
device = dasd_device_from_cdev(cdev);
if (IS_ERR(device))
@@ -1810,14 +1812,14 @@ dasd_generic_set_online (struct ccw_device *cdev,
struct dasd_device *device;
int feature_diag, rc;
- feature_diag = dasd_get_feature(cdev, DASD_FEATURE_USEDIAG);
- if (feature_diag < 0)
- return feature_diag;
-
device = dasd_create_device(cdev);
if (IS_ERR(device))
return PTR_ERR(device);
+ feature_diag = dasd_get_feature(cdev, DASD_FEATURE_USEDIAG);
+ if (feature_diag < 0)
+ return feature_diag;
+
if (feature_diag) {
if (!dasd_diag_discipline_pointer) {
printk (KERN_WARNING