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driver core: create a private portion of struct device

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This is to be used to move things out of struct device that no code
outside of the driver core should ever touch.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman
2008-12-16 12:23:36 -08:00
parent b23530ebc3
commit fb069a5d13
3 changed files with 24 additions and 0 deletions
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9
drivers/base/core.c
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@@ -109,6 +109,7 @@ static struct sysfs_ops dev_sysfs_ops = {
static void device_release(struct kobject *kobj)
{
struct device *dev = to_dev(kobj);
struct device_private *p = dev->p;
if (dev->release)
dev->release(dev);
@@ -120,6 +121,7 @@ static void device_release(struct kobject *kobj)
WARN(1, KERN_ERR "Device '%s' does not have a release() "
"function, it is broken and must be fixed.\n",
dev_name(dev));
kfree(p);
}
static struct kobj_type device_ktype = {
@@ -859,6 +861,13 @@ int device_add(struct device *dev)
if (!dev)
goto done;
dev->p = kzalloc(sizeof(*dev->p), GFP_KERNEL);
if (!dev->p) {
error = -ENOMEM;
goto done;
}
dev->p->device = dev;
/*
* for statically allocated devices, which should all be converted
* some day, we need to initialize the name. We prevent reading back