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authorCornelia Huck <cornelia.huck@de.ibm.com>2006-07-27 12:00:33 (GMT)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2006-07-27 12:00:33 (GMT)
commit17088229846c078aa936ca64912ab221d083aca1 (patch)
tree3271a4748edfde9c30a327edf2e01af4577bc44a /drivers
parentba4ba8a69dcb446450b5ddeca48a7bd15783f4c2 (diff)
[S390] duplicate ccw devices in ccwgroup.
Fail to create a ccwgroup device if a ccw device is passed in twice. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/s390/cio/ccwgroup.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index f26a2ee..3cba6c9 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -152,7 +152,6 @@ ccwgroup_create(struct device *root,
struct ccwgroup_device *gdev;
int i;
int rc;
- int del_drvdata;
if (argc > 256) /* disallow dumb users */
return -EINVAL;
@@ -163,7 +162,6 @@ ccwgroup_create(struct device *root,
atomic_set(&gdev->onoff, 0);
- del_drvdata = 0;
for (i = 0; i < argc; i++) {
gdev->cdev[i] = get_ccwdev_by_busid(cdrv, argv[i]);
@@ -180,10 +178,8 @@ ccwgroup_create(struct device *root,
rc = -EINVAL;
goto free_dev;
}
- }
- for (i = 0; i < argc; i++)
gdev->cdev[i]->dev.driver_data = gdev;
- del_drvdata = 1;
+ }
gdev->creator_id = creator_id;
gdev->count = argc;
@@ -226,9 +222,9 @@ error:
free_dev:
for (i = 0; i < argc; i++)
if (gdev->cdev[i]) {
- put_device(&gdev->cdev[i]->dev);
- if (del_drvdata)
+ if (gdev->cdev[i]->dev.driver_data == gdev)
gdev->cdev[i]->dev.driver_data = NULL;
+ put_device(&gdev->cdev[i]->dev);
}
kfree(gdev);
return rc;

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