Subject: Driver core: fix SYSF_DEPRECATED breakage for nested classdevs
From: Dmitry Torokhov <[email protected]>
We should only reparent to a class former class devices that
form the base of class hierarchy. Nested devices should still
grow from their real parents.
Signed-off-by: Dmitry Torokhov <[email protected]>
Tested-by: Andrey Borzenkov <[email protected]>
Tested-by: Anssi Hannula <[email protected]>
---
Linus,
Please consider applying this patch before releasing 2.6.23. It fixes
a regression in UDEV/HAL caused by conversion of input devices from
class devices to regular devices.
Thanks,
Dmitry
Index: linux/drivers/base/core.c
===================================================================
--- linux.orig/drivers/base/core.c
+++ linux/drivers/base/core.c
@@ -586,9 +586,13 @@ void device_initialize(struct device *de
static struct kobject * get_device_parent(struct device *dev,
struct device *parent)
{
- /* Set the parent to the class, not the parent device */
- /* this keeps sysfs from having a symlink to make old udevs happy */
- if (dev->class)
+ /*
+ * Set the parent to the class, not the parent device
+ * for topmost devices in class hierarchy.
+ * This keeps sysfs from having a symlink to make old
+ * udevs happy
+ */
+ if (dev->class && (!parent || parent->class != dev->class))
return &dev->class->subsys.kobj;
else if (parent)
return &parent->kobj;
\\
-
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