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alistair23-linux
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Driver core: add device symlink back to sysfs 

This moves the device symlink back to sysfs even if
CONFIG_SYSFS_DEPRECATED is enabled as too many userspace programs (well,
HAL), still rely on this link to be present.

I will rework the ability for sysfs to change layouts like this in the
future, but for now, this patch should fix people's network connections.


Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hifive-unleashed-5.1
Greg Kroah-Hartman 2007-03-06 12:55:53 -08:00
parent 161e232b88
commit f7f3461d87
1 changed files with 13 additions and 8 deletions
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21
drivers/base/core.c
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@ -584,17 +584,17 @@ int device_add(struct device *dev)
if (dev->kobj.parent != &dev->class->subsys.kset.kobj)
sysfs_create_link(&dev->class->subsys.kset.kobj,
&dev->kobj, dev->bus_id);
#ifdef CONFIG_SYSFS_DEPRECATED
if (parent) {
sysfs_create_link(&dev->kobj, &dev->parent->kobj,
"device");
#ifdef CONFIG_SYSFS_DEPRECATED
class_name = make_class_name(dev->class->name,
&dev->kobj);
if (class_name)
sysfs_create_link(&dev->parent->kobj,
&dev->kobj, class_name);
}
#endif
}
}
if ((error = device_add_attrs(dev)))
@ -651,17 +651,17 @@ int device_add(struct device *dev)
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) {
#ifdef CONFIG_SYSFS_DEPRECATED
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);
#endif
sysfs_remove_link(&dev->kobj, "device");
}
#endif
down(&dev->class->sem);
/* notify any interfaces that the device is now gone */
@ -761,17 +761,17 @@ void device_del(struct device * dev)
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) {
#ifdef CONFIG_SYSFS_DEPRECATED
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);
#endif
sysfs_remove_link(&dev->kobj, "device");
}
#endif
down(&dev->class->sem);
/* notify any interfaces that the device is now gone */
@ -1071,8 +1071,8 @@ static int device_move_class_links(struct device *dev,
struct device *old_parent,
struct device *new_parent)
{
int error = 0;
#ifdef CONFIG_SYSFS_DEPRECATED
int error;
char *class_name;
class_name = make_class_name(dev->class->name, &dev->kobj);
@ -1100,7 +1100,12 @@ out:
kfree(class_name);
return error;
#else
return 0;
if (old_parent)
sysfs_remove_link(&dev->kobj, "device");
if (new_parent)
error = sysfs_create_link(&dev->kobj, &new_parent->kobj,
"device");
return error;
#endif
}