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-rw-r--r--drivers/base/core.c29
1 files changed, 23 insertions, 6 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c
index e6738bcbe5a9..6de33d7a29ba 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -679,14 +679,26 @@ static int device_add_class_symlinks(struct device *dev)
goto out_subsys;
}
if (dev->parent) {
- error = sysfs_create_link(&dev->kobj, &dev->parent->kobj,
- "device");
- if (error)
- goto out_busid;
#ifdef CONFIG_SYSFS_DEPRECATED
{
- char * class_name = make_class_name(dev->class->name,
- &dev->kobj);
+ struct device *parent = dev->parent;
+ char *class_name;
+
+ /*
+ * In old sysfs stacked class devices had 'device'
+ * link pointing to real device instead of parent
+ */
+ while (parent->class && !parent->bus && parent->parent)
+ parent = parent->parent;
+
+ error = sysfs_create_link(&dev->kobj,
+ &parent->kobj,
+ "device");
+ if (error)
+ goto out_busid;
+
+ class_name = make_class_name(dev->class->name,
+ &dev->kobj);
if (class_name)
error = sysfs_create_link(&dev->parent->kobj,
&dev->kobj, class_name);
@@ -694,6 +706,11 @@ static int device_add_class_symlinks(struct device *dev)
if (error)
goto out_device;
}
+#else
+ error = sysfs_create_link(&dev->kobj, &dev->parent->kobj,
+ "device");
+ if (error)
+ goto out_busid;
#endif
}
return 0;

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