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usb: gadget: printer: move function-related unbind code to function's unbind 

In order to factor out a reusable f_printer.c, the code related to the
function should be placed in functions related to the function.

printer_cfg_unbind() becomes empty, so it is removed.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Andrzej Pietrasiewicz 2015-03-03 10:52:15 +01:00 committed by Felipe Balbi
parent cee5cbff8d
commit 991cd26249
1 changed files with 25 additions and 33 deletions
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58
drivers/usb/gadget/legacy/printer.c
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@ -1155,44 +1155,12 @@ static int __init printer_func_bind(struct usb_configuration *c,
static void printer_func_unbind(struct usb_configuration *c,
struct usb_function *f)
{
usb_free_all_descriptors(f);
}
static int printer_func_set_alt(struct usb_function *f,
unsigned intf, unsigned alt)
{
struct printer_dev *dev = container_of(f, struct printer_dev, function);
int ret = -ENOTSUPP;
if (!alt)
ret = set_interface(dev, intf);
return ret;
}
static void printer_func_disable(struct usb_function *f)
{
struct printer_dev *dev = container_of(f, struct printer_dev, function);
unsigned long flags;
DBG(dev, "%s\n", __func__);
spin_lock_irqsave(&dev->lock, flags);
printer_reset_interface(dev);
spin_unlock_irqrestore(&dev->lock, flags);
}
static void printer_cfg_unbind(struct usb_configuration *c)
{
struct printer_dev *dev;
struct usb_request *req;
dev = &usb_printer_gadget;
DBG(dev, "%s\n", __func__);
/* Remove sysfs files */
device_destroy(usb_gadget_class, g_printer_devno);
/* Remove Character Device */
@ -1226,11 +1194,35 @@ static void printer_cfg_unbind(struct usb_configuration *c)
list_del(&req->list);
printer_req_free(dev->out_ep, req);
}
usb_free_all_descriptors(f);
}
static int printer_func_set_alt(struct usb_function *f,
unsigned intf, unsigned alt)
{
struct printer_dev *dev = container_of(f, struct printer_dev, function);
int ret = -ENOTSUPP;
if (!alt)
ret = set_interface(dev, intf);
return ret;
}
static void printer_func_disable(struct usb_function *f)
{
struct printer_dev *dev = container_of(f, struct printer_dev, function);
unsigned long flags;
DBG(dev, "%s\n", __func__);
spin_lock_irqsave(&dev->lock, flags);
printer_reset_interface(dev);
spin_unlock_irqrestore(&dev->lock, flags);
}
static struct usb_configuration printer_cfg_driver = {
.label = "printer",
.unbind = printer_cfg_unbind,
.bConfigurationValue = 1,
.bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
};