Input: ibmasm - convert to dynamic input_dev allocation

Update the ibmasm driver to use the dynamic allocation of input_dev
structs to work with the sysfs subsystem.

Vojtech: Fixed some problems/bugs in the patch.
Dmitry: Fixed some more.

Signed-off-by: Vernon Mauery <vernux@us.ibm.com>
Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

2 files changed, 48 insertions, 34 deletions

diff --git a/drivers/misc/ibmasm/ibmasm.h b/drivers/misc/ibmasm/ibmasm.h
index d7e20a34f88d..1cef2387fa65 100644
--- a/drivers/misc/ibmasm/ibmasm.h
+++ b/drivers/misc/ibmasm/ibmasm.h
@@ -141,8 +141,8 @@ struct reverse_heartbeat {
 };
 
 struct ibmasm_remote {
-        struct input_dev keybd_dev;
-        struct input_dev mouse_dev;
+        struct input_dev *keybd_dev;
+        struct input_dev *mouse_dev;
 };
 
 struct service_processor {
@@ -157,7 +157,7 @@ struct service_processor {
         char                    dirname[IBMASM_NAME_SIZE];
         char                    devname[IBMASM_NAME_SIZE];
         unsigned int            number;
-        struct ibmasm_remote    *remote;
+        struct ibmasm_remote    remote;
         int                     serial_line;
         struct device           *dev;
 };
diff --git a/drivers/misc/ibmasm/remote.c b/drivers/misc/ibmasm/remote.c
index d3c48d23ee51..1abd0c58ae27 100644
--- a/drivers/misc/ibmasm/remote.c
+++ b/drivers/misc/ibmasm/remote.c
@@ -203,9 +203,9 @@ void ibmasm_handle_mouse_interrupt(struct service_processor *sp,
 
                 print_input(&input);
                 if (input.type == INPUT_TYPE_MOUSE) {
-                        send_mouse_event(&sp->remote->mouse_dev, regs, &input);
+                        send_mouse_event(sp->remote.mouse_dev, regs, &input);
                 } else if (input.type == INPUT_TYPE_KEYBOARD) {
-                        send_keyboard_event(&sp->remote->keybd_dev, regs, &input);
+                        send_keyboard_event(sp->remote.keybd_dev, regs, &input);
                 } else
                         break;
 
@@ -217,56 +217,70 @@ void ibmasm_handle_mouse_interrupt(struct service_processor *sp,
 int ibmasm_init_remote_input_dev(struct service_processor *sp)
 {
         /* set up the mouse input device */
-        struct ibmasm_remote *remote;
+        struct input_dev *mouse_dev, *keybd_dev;
         struct pci_dev *pdev = to_pci_dev(sp->dev);
+        int error = -ENOMEM;
         int i;
 
-        sp->remote = remote = kmalloc(sizeof(*remote), GFP_KERNEL);
-        if (!remote)
-                return -ENOMEM;
+        sp->remote.mouse_dev = mouse_dev = input_allocate_device();
+        sp->remote.keybd_dev = keybd_dev = input_allocate_device();
 
-        memset(remote, 0, sizeof(*remote));
+        if (!mouse_dev || !keybd_dev)
+                goto err_free_devices;
 
-        remote->mouse_dev.private = remote;
-        init_input_dev(&remote->mouse_dev);
-        remote->mouse_dev.id.vendor = pdev->vendor;
-        remote->mouse_dev.id.product = pdev->device;
-        remote->mouse_dev.evbit[0]  = BIT(EV_KEY) | BIT(EV_ABS);
-        remote->mouse_dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) |
+        mouse_dev->id.bustype = BUS_PCI;
+        mouse_dev->id.vendor = pdev->vendor;
+        mouse_dev->id.product = pdev->device;
+        mouse_dev->id.version = 1;
+        mouse_dev->evbit[0]  = BIT(EV_KEY) | BIT(EV_ABS);
+        mouse_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) |
                 BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
-        set_bit(BTN_TOUCH, remote->mouse_dev.keybit);
-        remote->mouse_dev.name = remote_mouse_name;
-        input_set_abs_params(&remote->mouse_dev, ABS_X, 0, xmax, 0, 0);
-        input_set_abs_params(&remote->mouse_dev, ABS_Y, 0, ymax, 0, 0);
+        set_bit(BTN_TOUCH, mouse_dev->keybit);
+        mouse_dev->name = remote_mouse_name;
+        input_set_abs_params(mouse_dev, ABS_X, 0, xmax, 0, 0);
+        input_set_abs_params(mouse_dev, ABS_Y, 0, ymax, 0, 0);
 
-        remote->keybd_dev.private = remote;
-        init_input_dev(&remote->keybd_dev);
-        remote->keybd_dev.id.vendor = pdev->vendor;
-        remote->keybd_dev.id.product = pdev->device;
-        remote->keybd_dev.evbit[0]  = BIT(EV_KEY);
-        remote->keybd_dev.name = remote_keybd_name;
+        mouse_dev->id.bustype = BUS_PCI;
+        keybd_dev->id.vendor = pdev->vendor;
+        keybd_dev->id.product = pdev->device;
+        mouse_dev->id.version = 2;
+        keybd_dev->evbit[0]  = BIT(EV_KEY);
+        keybd_dev->name = remote_keybd_name;
 
-        for (i=0; i<XLATE_SIZE; i++) {
+        for (i = 0; i < XLATE_SIZE; i++) {
                 if (xlate_high[i])
-                        set_bit(xlate_high[i], remote->keybd_dev.keybit);
+                        set_bit(xlate_high[i], keybd_dev->keybit);
                 if (xlate[i])
-                        set_bit(xlate[i], remote->keybd_dev.keybit);
+                        set_bit(xlate[i], keybd_dev->keybit);
         }
 
-        input_register_device(&remote->mouse_dev);
-        input_register_device(&remote->keybd_dev);
+        error = input_register_device(mouse_dev);
+        if (error)
+                goto err_free_devices;
+
+        error = input_register_device(keybd_dev);
+        if (error)
+                goto err_unregister_mouse_dev;
+
         enable_mouse_interrupts(sp);
 
         printk(KERN_INFO "ibmasm remote responding to events on RSA card %d\n", sp->number);
 
         return 0;
+
+ err_unregister_mouse_dev:
+        input_unregister_device(mouse_dev);
+ err_free_devices:
+        input_free_device(mouse_dev);
+        input_free_device(keybd_dev);
+
+        return error;
 }
 
 void ibmasm_free_remote_input_dev(struct service_processor *sp)
 {
         disable_mouse_interrupts(sp);
-        input_unregister_device(&sp->remote->keybd_dev);
-        input_unregister_device(&sp->remote->mouse_dev);
-        kfree(sp->remote);
+        input_unregister_device(sp->remote.mouse_dev);
+        input_unregister_device(sp->remote.keybd_dev);
 }