usb: gadget: s3c-hsudc: remove the_controller global

Instead use container_of to retrieve the s3c_hsudc from the
struct usb_gadget pointer.

[ balbi@ti.com : changed verbose container_of() into
	an already provided helper 'to_hsudc()' ]

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c
index f9de57e..9766120 100644 (file)
--- a/drivers/usb/gadget/s3c-hsudc.c
+++ b/drivers/usb/gadget/s3c-hsudc.c
@@ -161,7 +161,6 @@ struct s3c_hsudc {
 #define ep_index(_ep)          ((_ep)->bEndpointAddress & \
                                        USB_ENDPOINT_NUMBER_MASK)
 
-static struct s3c_hsudc *the_controller;
 static const char driver_name[] = "s3c-udc";
 static const char ep0name[] = "ep0-control";
 
@@ -1141,7 +1140,7 @@ static irqreturn_t s3c_hsudc_irq(int irq, void *_dev)
 static int s3c_hsudc_start(struct usb_gadget *gadget,
                struct usb_gadget_driver *driver)
 {
-       struct s3c_hsudc *hsudc = the_controller;
+       struct s3c_hsudc *hsudc = to_hsudc(gadget);
        int ret;
 
        if (!driver
@@ -1195,7 +1194,7 @@ err_supplies:
 static int s3c_hsudc_stop(struct usb_gadget *gadget,
                struct usb_gadget_driver *driver)
 {
-       struct s3c_hsudc *hsudc = the_controller;
+       struct s3c_hsudc *hsudc = to_hsudc(gadget);
        unsigned long flags;
 
        if (!hsudc)
@@ -1238,7 +1237,7 @@ static int s3c_hsudc_gadget_getframe(struct usb_gadget *gadget)
 
 static int s3c_hsudc_vbus_draw(struct usb_gadget *gadget, unsigned mA)
 {
-       struct s3c_hsudc *hsudc = the_controller;
+       struct s3c_hsudc *hsudc = to_hsudc(gadget);
 
        if (!hsudc)
                return -ENODEV;
@@ -1272,7 +1271,6 @@ static int __devinit s3c_hsudc_probe(struct platform_device *pdev)
                return -ENOMEM;
        }
 
-       the_controller = hsudc;
        platform_set_drvdata(pdev, dev);
        hsudc->dev = dev;
        hsudc->pd = pdev->dev.platform_data;