From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Thu, 26 Sep 2013 12:38:15 +0000 (+0200)
Subject: usb: gadget: configfs: add a method to unregister the gadget
X-Git-Tag: accepted/tizen/common/20141203.182822~1210^2~22^2~79
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=092a4bd069fcca09f345a79c8abdc945cf6b1b57;p=platform%2Fkernel%2Flinux-arm64.git

usb: gadget: configfs: add a method to unregister the gadget

Add a method to unregister the gadget using its config_item.

There can be functions (e.g. mass storage), which in some circumstances
need the gadget stopped. Add a method of stopping the gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 1bfacbf..2588511 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -991,6 +991,14 @@ static struct configfs_subsystem gadget_subsys = {
 	.su_mutex = __MUTEX_INITIALIZER(gadget_subsys.su_mutex),
 };
 
+void unregister_gadget_item(struct config_item *item)
+{
+	struct gadget_info *gi = to_gadget_info(item);
+
+	unregister_gadget(gi);
+}
+EXPORT_SYMBOL(unregister_gadget_item);
+
 static int __init gadget_cfs_init(void)
 {
 	int ret;
diff --git a/drivers/usb/gadget/configfs.h b/drivers/usb/gadget/configfs.h
new file mode 100644
index 0000000..a7b564a
--- /dev/null
+++ b/drivers/usb/gadget/configfs.h
@@ -0,0 +1,6 @@
+#ifndef USB__GADGET__CONFIGFS__H
+#define USB__GADGET__CONFIGFS__H
+
+void unregister_gadget_item(struct config_item *item);
+
+#endif /*  USB__GADGET__CONFIGFS__H */