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driver core fixes: device_add() cleanup on error

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Check for return code of device_create_file() and correct cleanup in
the error case in device_add().

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Cornelia Huck 2006-09-22 11:37:13 +02:00 committed by Greg Kroah-Hartman
parent 513e7337ad
commit a306eea409
1 changed files with 7 additions and 3 deletions
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10
drivers/base/core.c
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@ -433,14 +433,16 @@ int device_add(struct device *dev)
if (dev->driver)
dev->uevent_attr.attr.owner = dev->driver->owner;
dev->uevent_attr.store = store_uevent;
device_create_file(dev, &dev->uevent_attr);
error = device_create_file(dev, &dev->uevent_attr);
if (error)
goto attrError;
if (MAJOR(dev->devt)) {
struct device_attribute *attr;
attr = kzalloc(sizeof(*attr), GFP_KERNEL);
if (!attr) {
error = -ENOMEM;
goto PMError;
goto ueventattrError;
}
attr->attr.name = "dev";
attr->attr.mode = S_IRUGO;
@ -450,7 +452,7 @@ int device_add(struct device *dev)
error = device_create_file(dev, attr);
if (error) {
kfree(attr);
goto attrError;
goto ueventattrError;
}
dev->devt_attr = attr;
@ -507,6 +509,8 @@ int device_add(struct device *dev)
device_remove_file(dev, dev->devt_attr);
kfree(dev->devt_attr);
}
ueventattrError:
device_remove_file(dev, &dev->uevent_attr);
attrError:
kobject_uevent(&dev->kobj, KOBJ_REMOVE);
kobject_del(&dev->kobj);