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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2007-10-07 12:22:21 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-07 16:42:22 -0700
commit3eb215de26e6e94bf5fed9cb77230c383b30e53b (patch)
tree3500a575ea6458bf9f256427abebfa69458db151
parent85923b124624eb49ebef4731bb6b5670e792ff57 (diff)
Driver core: fix SYSF_DEPRECATED breakage for nested classdevs
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 <dtor@mail.ru> Tested-by: Andrey Borzenkov <arvidjaar@mail.ru> Tested-by: Anssi Hannula <anssi.hannula@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/base/core.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 67c92582d6e..ec86d6fc236 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -586,9 +586,13 @@ void device_initialize(struct device *dev)
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;