[PATCH] Input: convert onetouch to dynamic input_dev allocation

Input: convert onetouch to dynamic input_dev allocation

This is required for input_dev sysfs integration

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 50 insertions, 49 deletions

diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c
index 2c9402dc702b..89401a59f952 100644
--- a/drivers/usb/storage/onetouch.c
+++ b/drivers/usb/storage/onetouch.c
@@ -5,7 +5,7 @@
  *      Copyright (c) 2005 Nick Sillik <n.sillik@temple.edu>
  *
  * Initial work by:
- *      Copyright (c) 2003 Erik Thyren <erth7411@student.uu.se>
+ *      Copyright (c) 2003 Erik Thyren <erth7411@student.uu.se>
  *
  * Based on usbmouse.c (Vojtech Pavlik) and xpad.c (Marko Friedemann)
  *
@@ -46,7 +46,7 @@ void onetouch_release_input(void *onetouch_);
 struct usb_onetouch {
         char name[128];
         char phys[64];
-        struct input_dev dev;   /* input device interface */
+        struct input_dev *dev;  /* input device interface */
         struct usb_device *udev;        /* usb device */
 
         struct urb *irq;        /* urb for interrupt in report */
@@ -58,7 +58,7 @@ static void usb_onetouch_irq(struct urb *urb, struct pt_regs *regs)
 {
         struct usb_onetouch *onetouch = urb->context;
         signed char *data = onetouch->data;
-        struct input_dev *dev = &onetouch->dev;
+        struct input_dev *dev = onetouch->dev;
         int status;
 
         switch (urb->status) {
@@ -74,11 +74,9 @@ static void usb_onetouch_irq(struct urb *urb, struct pt_regs *regs)
         }
 
         input_regs(dev, regs);
-
-        input_report_key(&onetouch->dev, ONETOUCH_BUTTON,
-                         data[0] & 0x02);
-
+        input_report_key(dev, ONETOUCH_BUTTON, data[0] & 0x02);
         input_sync(dev);
+
 resubmit:
         status = usb_submit_urb (urb, SLAB_ATOMIC);
         if (status)
@@ -113,8 +111,8 @@ int onetouch_connect_input(struct us_data *ss)
         struct usb_host_interface *interface;
         struct usb_endpoint_descriptor *endpoint;
         struct usb_onetouch *onetouch;
+        struct input_dev *input_dev;
         int pipe, maxp;
-        char path[64];
 
         interface = ss->pusb_intf->cur_altsetting;
 
@@ -122,62 +120,62 @@ int onetouch_connect_input(struct us_data *ss)
                 return -ENODEV;
 
         endpoint = &interface->endpoint[2].desc;
-        if(!(endpoint->bEndpointAddress & USB_DIR_IN))
+        if (!(endpoint->bEndpointAddress & USB_DIR_IN))
                 return -ENODEV;
-        if((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+        if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
                         != USB_ENDPOINT_XFER_INT)
                 return -ENODEV;
 
         pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
         maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
 
-        if (!(onetouch = kcalloc(1, sizeof(struct usb_onetouch), GFP_KERNEL)))
-                return -ENOMEM;
+        onetouch = kzalloc(sizeof(struct usb_onetouch), GFP_KERNEL);
+        input_dev = input_allocate_device();
+        if (!onetouch || !input_dev)
+                goto fail1;
 
         onetouch->data = usb_buffer_alloc(udev, ONETOUCH_PKT_LEN,
                                           SLAB_ATOMIC, &onetouch->data_dma);
-        if (!onetouch->data){
-                kfree(onetouch);
-                return -ENOMEM;
-        }
+        if (!onetouch->data)
+                goto fail1;
 
         onetouch->irq = usb_alloc_urb(0, GFP_KERNEL);
-        if (!onetouch->irq){
-                kfree(onetouch);
-                usb_buffer_free(udev, ONETOUCH_PKT_LEN,
-                                onetouch->data, onetouch->data_dma);
-                return -ENODEV;
-        }
-
+        if (!onetouch->irq)
+                goto fail2;
 
         onetouch->udev = udev;
+        onetouch->dev = input_dev;
 
-        set_bit(EV_KEY, onetouch->dev.evbit);
-        set_bit(ONETOUCH_BUTTON, onetouch->dev.keybit);
-        clear_bit(0, onetouch->dev.keybit);
+        if (udev->manufacturer)
+                strlcpy(onetouch->name, udev->manufacturer,
+                        sizeof(onetouch->name));
+        if (udev->product) {
+                if (udev->manufacturer)
+                        strlcat(onetouch->name, " ", sizeof(onetouch->name));
+                strlcat(onetouch->name, udev->product, sizeof(onetouch->name));
+        }
 
-        onetouch->dev.private = onetouch;
-        onetouch->dev.open = usb_onetouch_open;
-        onetouch->dev.close = usb_onetouch_close;
+        if (!strlen(onetouch->name))
+                snprintf(onetouch->name, sizeof(onetouch->name),
+                         "Maxtor Onetouch %04x:%04x",
+                         le16_to_cpu(udev->descriptor.idVendor),
+                         le16_to_cpu(udev->descriptor.idProduct));
 
-        usb_make_path(udev, path, sizeof(path));
-        sprintf(onetouch->phys, "%s/input0", path);
+        usb_make_path(udev, onetouch->phys, sizeof(onetouch->phys));
+        strlcat(onetouch->phys, "/input0", sizeof(onetouch->phys));
 
-        onetouch->dev.name = onetouch->name;
-        onetouch->dev.phys = onetouch->phys;
+        input_dev->name = onetouch->name;
+        input_dev->phys = onetouch->phys;
+        usb_to_input_id(udev, &input_dev->id);
+        input_dev->cdev.dev = &udev->dev;
 
-        usb_to_input_id(udev, &onetouch->dev.id);
+        set_bit(EV_KEY, input_dev->evbit);
+        set_bit(ONETOUCH_BUTTON, input_dev->keybit);
+        clear_bit(0, input_dev->keybit);
 
-        onetouch->dev.dev = &udev->dev;
-
-        if (udev->manufacturer)
-                strcat(onetouch->name, udev->manufacturer);
-        if (udev->product)
-                sprintf(onetouch->name, "%s %s", onetouch->name,
-                        udev->product);
-        if (!strlen(onetouch->name))
-                sprintf(onetouch->name, "Maxtor Onetouch %04x:%04x",
-                        onetouch->dev.id.vendor, onetouch->dev.id.product);
+        input_dev->private = onetouch;
+        input_dev->open = usb_onetouch_open;
+        input_dev->close = usb_onetouch_close;
 
         usb_fill_int_urb(onetouch->irq, udev, pipe, onetouch->data,
                          (maxp > 8 ? 8 : maxp),
@@ -188,10 +186,15 @@ int onetouch_connect_input(struct us_data *ss)
         ss->extra_destructor = onetouch_release_input;
         ss->extra = onetouch;
 
-        input_register_device(&onetouch->dev);
-        printk(KERN_INFO "usb-input: %s on %s\n", onetouch->dev.name, path);
+        input_register_device(onetouch->dev);
 
         return 0;
+
+ fail2: usb_buffer_free(udev, ONETOUCH_PKT_LEN,
+                        onetouch->data, onetouch->data_dma);
+ fail1: kfree(onetouch);
+        input_free_device(input_dev);
+        return -ENOMEM;
 }
 
 void onetouch_release_input(void *onetouch_)
@@ -200,11 +203,9 @@ void onetouch_release_input(void *onetouch_)
 
         if (onetouch) {
                 usb_kill_urb(onetouch->irq);
-                input_unregister_device(&onetouch->dev);
+                input_unregister_device(onetouch->dev);
                 usb_free_urb(onetouch->irq);
                 usb_buffer_free(onetouch->udev, ONETOUCH_PKT_LEN,
                                 onetouch->data, onetouch->data_dma);
-                printk(KERN_INFO "usb-input: deregistering %s\n",
-                                onetouch->dev.name);
         }
 }