leds-lp55xx: add new function for removing device attribtues

lp55xx_unregister_sysfs() is used for removing lp55xx device attributes. Chip specific and engine attributes are removed on unloading the driver. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
git-mirror · Feb 6, 2013 · ba6fa84 · ba6fa84
1 parent 9ca3bd8
commit ba6fa84
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diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
@@ -509,6 +509,18 @@ int lp55xx_register_sysfs(struct lp55xx_chip *chip)
 }
 EXPORT_SYMBOL_GPL(lp55xx_register_sysfs);
 
+void lp55xx_unregister_sysfs(struct lp55xx_chip *chip)
+{
+	struct device *dev = &chip->cl->dev;
+	struct lp55xx_device_config *cfg = chip->cfg;
+
+	if (cfg->dev_attr_group)
+		sysfs_remove_group(&dev->kobj, cfg->dev_attr_group);
+
+	sysfs_remove_group(&dev->kobj, &lp55xx_engine_attr_group);
+}
+EXPORT_SYMBOL_GPL(lp55xx_unregister_sysfs);
+
 MODULE_AUTHOR("Milo Kim <milo.kim@ti.com>");
 MODULE_DESCRIPTION("LP55xx Common Driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/leds/leds-lp55xx-common.h b/drivers/leds/leds-lp55xx-common.h
@@ -129,5 +129,6 @@ extern void lp55xx_unregister_leds(struct lp55xx_led *led,
 
 /* common device attributes functions */
 extern int lp55xx_register_sysfs(struct lp55xx_chip *chip);
+extern void lp55xx_unregister_sysfs(struct lp55xx_chip *chip);
 
 #endif /* _LEDS_LP55XX_COMMON_H */