[PATCH] INPUT: Fix oops when accessing sysfs files of nested input devices

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/input/input.c b/drivers/input/input.c
index b0ede4c..0d570cf 100644 (file)
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -642,17 +642,22 @@ static ssize_t input_dev_show_##name(struct class_device *dev, char *buf) \
        up(&input_dev->sem);                                                    \
                                                                                \
        return retval;                                                          \
-}
+}                                                                              \
+static CLASS_DEVICE_ATTR(name, S_IRUGO, input_dev_show_##name, NULL);
 
 INPUT_DEV_STRING_ATTR_SHOW(name);
 INPUT_DEV_STRING_ATTR_SHOW(phys);
 INPUT_DEV_STRING_ATTR_SHOW(uniq);
 
-static struct class_device_attribute input_dev_attrs[] = {
-       __ATTR(name, S_IRUGO, input_dev_show_name, NULL),
-       __ATTR(phys, S_IRUGO, input_dev_show_phys, NULL),
-       __ATTR(uniq, S_IRUGO, input_dev_show_uniq, NULL),
-       __ATTR_NULL
+static struct attribute *input_dev_attrs[] = {
+       &class_device_attr_name.attr,
+       &class_device_attr_phys.attr,
+       &class_device_attr_uniq.attr,
+       NULL
+};
+
+static struct attribute_group input_dev_group = {
+       .attrs  = input_dev_attrs,
 };
 
 #define INPUT_DEV_ID_ATTR(name)                                                        \
@@ -728,7 +733,6 @@ static void input_dev_release(struct class_device *class_dev)
 struct class input_dev_class = {
        .name                   = "input_dev",
        .release                = input_dev_release,
-       .class_dev_attrs        = input_dev_attrs,
 };
 
 struct input_dev *input_allocate_device(void)
@@ -766,6 +770,7 @@ static void input_register_classdevice(struct input_dev *dev)
        kfree(path);
 
        class_device_add(&dev->cdev);
+       sysfs_create_group(&dev->cdev.kobj, &input_dev_group);
        sysfs_create_group(&dev->cdev.kobj, &input_dev_id_attr_group);
        sysfs_create_group(&dev->cdev.kobj, &input_dev_caps_attr_group);
 }