diff options
| author |   Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | 2008-08-21 19:46:36 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-08-21 19:46:40 +0200 |
| commit | 16f7f9564c3ae190954f2ec55f385a268b93ac4d (patch) | |
| tree | ce1cfe665c047e39a5ae67840a00074267efb38d /drivers/s390/cio/ccwgroup.c | |
| parent | [S390] qdio: remove the module_get & module_put pair (diff) | |
| download | linux-dev-16f7f9564c3ae190954f2ec55f385a268b93ac4d.tar.xz linux-dev-16f7f9564c3ae190954f2ec55f385a268b93ac4d.zip | |
[S390] cio: fix ccw group device cleanup
Fix ccw group device initialization: initialize device object before
using reference counting during cleanup.
Fixes the following message when group device initialization fails
(e.g. because too few devices where specified):
kobject: '<NULL>' (..): is not initialized, yet kobject_put() is
being called.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/ccwgroup.c')
| -rw-r--r-- | drivers/s390/cio/ccwgroup.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index 26a930e832bd..e0ce65fca4e7 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -112,8 +112,10 @@ ccwgroup_release (struct device *dev) gdev = to_ccwgroupdev(dev); for (i = 0; i < gdev->count; i++) { - dev_set_drvdata(&gdev->cdev[i]->dev, NULL); - put_device(&gdev->cdev[i]->dev); + if (gdev->cdev[i]) { + dev_set_drvdata(&gdev->cdev[i]->dev, NULL); + put_device(&gdev->cdev[i]->dev); + } } kfree(gdev); } @@ -221,6 +223,13 @@ int ccwgroup_create_from_string(struct device *root, unsigned int creator_id, atomic_set(&gdev->onoff, 0); mutex_init(&gdev->reg_mutex); mutex_lock(&gdev->reg_mutex); + gdev->creator_id = creator_id; + gdev->count = num_devices; + gdev->dev.bus = &ccwgroup_bus_type; + gdev->dev.parent = root; + gdev->dev.release = ccwgroup_release; + device_initialize(&gdev->dev); + curr_buf = buf; for (i = 0; i < num_devices && curr_buf; i++) { rc = __get_next_bus_id(&curr_buf, tmp_bus_id); @@ -258,16 +267,11 @@ int ccwgroup_create_from_string(struct device *root, unsigned int creator_id, rc = -EINVAL; goto error; } - gdev->creator_id = creator_id; - gdev->count = num_devices; - gdev->dev.bus = &ccwgroup_bus_type; - gdev->dev.parent = root; - gdev->dev.release = ccwgroup_release; snprintf (gdev->dev.bus_id, BUS_ID_SIZE, "%s", gdev->cdev[0]->dev.bus_id); - rc = device_register(&gdev->dev); + rc = device_add(&gdev->dev); if (rc) goto error; get_device(&gdev->dev); |