diff options
| author |   James Simmons <jsimmons@infradead.org> | 2007-02-21 17:44:51 +0000 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2007-02-23 14:52:09 -0800 |
| commit | 82f0cf9b7c42684c29189ddb6d0bc86eb1137fc4 (patch) | |
| tree | 3052eb95a5e6070cbee8a1262952abc48f2eedbe /drivers/base | |
| parent | make kernel/kmod.c:kmod_mk static (diff) | |
| download | linux-dev-82f0cf9b7c42684c29189ddb6d0bc86eb1137fc4.tar.xz linux-dev-82f0cf9b7c42684c29189ddb6d0bc86eb1137fc4.zip | |
Driver core: fix error by cleanup up symlinks properly
When a device fails to register the class symlinks where not cleaned up.
This left a symlink in the /sys/class/"device"/ directory that pointed
to no where. This caused the sysfs_follow_link Oops I reported earlier.
This patch cleanups up the symlink. Please apply. Thank you.
Signed-Off: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/core.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index d04fd33dcd91..cf2a398aaaa1 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -637,12 +637,41 @@ int device_add(struct device *dev) BUS_NOTIFY_DEL_DEVICE, dev); device_remove_groups(dev); GroupError: - device_remove_attrs(dev); + device_remove_attrs(dev); AttrsError: if (dev->devt_attr) { device_remove_file(dev, dev->devt_attr); kfree(dev->devt_attr); } + + if (dev->class) { + sysfs_remove_link(&dev->kobj, "subsystem"); + /* If this is not a "fake" compatible device, remove the + * symlink from the class to the device. */ + if (dev->kobj.parent != &dev->class->subsys.kset.kobj) + sysfs_remove_link(&dev->class->subsys.kset.kobj, + dev->bus_id); +#ifdef CONFIG_SYSFS_DEPRECATED + if (parent) { + char *class_name = make_class_name(dev->class->name, + &dev->kobj); + if (class_name) + sysfs_remove_link(&dev->parent->kobj, + class_name); + kfree(class_name); + sysfs_remove_link(&dev->kobj, "device"); + } +#endif + + down(&dev->class->sem); + /* notify any interfaces that the device is now gone */ + list_for_each_entry(class_intf, &dev->class->interfaces, node) + if (class_intf->remove_dev) + class_intf->remove_dev(dev, class_intf); + /* remove the device from the class list */ + list_del_init(&dev->node); + up(&dev->class->sem); + } ueventattrError: device_remove_file(dev, &dev->uevent_attr); attrError: |