linux-kernel - [PATCH 24/33] leds-lp55xx: add unregister dev attr function

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Date:	Wed, 12 Dec 2012 14:02:40 +0000
From:	"Kim, Milo" <Milo.Kim@...com>
To:	Bryan Wu <cooloney@...il.com>
CC:	"linux-leds@...r.kernel.org" <linux-leds@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH 24/33] leds-lp55xx: add unregister dev attr function

 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@...com>
---
 drivers/leds/leds-lp55xx-common.c |   12 ++++++++++++
 drivers/leds/leds-lp55xx-common.h |    1 +
 2 files changed, 13 insertions(+)

diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index 731f826..c0c66ec 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -508,3 +508,15 @@ dev_specific_attrs:
 		sysfs_create_group(&dev->kobj, cfg->dev_attr_group) : 0;
 }
 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);
diff --git a/drivers/leds/leds-lp55xx-common.h b/drivers/leds/leds-lp55xx-common.h
index 39f54d2..20586be 100644
--- a/drivers/leds/leds-lp55xx-common.h
+++ b/drivers/leds/leds-lp55xx-common.h
@@ -128,5 +128,6 @@ 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 */
-- 
1.7.9.5


Best Regards,
Milo


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