diff options
| author | Cornelia Huck <cornelia.huck@de.ibm.com> | 2006-07-27 14:00:33 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-07-27 14:00:33 +0200 |
| commit | 17088229846c078aa936ca64912ab221d083aca1 (patch) | |
| tree | 3271a4748edfde9c30a327edf2e01af4577bc44a /drivers | |
| parent | [S390] permanent subchannel busy conditions may cause I/O stall (diff) | |
| download | linux-17088229846c078aa936ca64912ab221d083aca1.tar.xz linux-17088229846c078aa936ca64912ab221d083aca1.zip | |
[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.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index f26a2ee3aad8..3cba6c9fab11 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; |