Input: locomokbd - convert to dynamic input allocation

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/keyboard/locomokbd.c

@@ -76,7 +76,7 @@ static unsigned char locomokbd_keycode[LOCOMOKBD_NUMKEYS] = {
 
 struct locomokbd {
 	unsigned char keycode[LOCOMOKBD_NUMKEYS];
-	struct input_dev input;
+	struct input_dev *input;
 	char phys[32];
 
 	struct locomo_dev *ldev;
@@ -136,8 +136,7 @@ static void locomokbd_scankeyboard(struct locomokbd *locomokbd, struct pt_regs *
 
 	spin_lock_irqsave(&locomokbd->lock, flags);
 
-	if (regs)
-		input_regs(&locomokbd->input, regs);
+	input_regs(locomokbd->input, regs);
 
 	locomokbd_charge_all(membase);
 
@@ -152,16 +151,16 @@ static void locomokbd_scankeyboard(struct locomokbd *locomokbd, struct pt_regs *
 			scancode = SCANCODE(col, row);
 			if (rowd & KB_ROWMASK(row)) {
 				num_pressed += 1;
-				input_report_key(&locomokbd->input, locomokbd->keycode[scancode], 1);
+				input_report_key(locomokbd->input, locomokbd->keycode[scancode], 1);
 			} else {
-				input_report_key(&locomokbd->input, locomokbd->keycode[scancode], 0);
+				input_report_key(locomokbd->input, locomokbd->keycode[scancode], 0);
 			}
 		}
 		locomokbd_reset_col(membase, col);
 	}
 	locomokbd_activate_all(membase);
 
-	input_sync(&locomokbd->input);
+	input_sync(locomokbd->input);
 
 	/* if any keys are pressed, enable the timer */
 	if (num_pressed)
@@ -196,13 +195,15 @@ static void locomokbd_timer_callback(unsigned long data)
 static int locomokbd_probe(struct locomo_dev *dev)
 {
 	struct locomokbd *locomokbd;
+	struct input_dev *input_dev;
 	int i, ret;
 
-	locomokbd = kmalloc(sizeof(struct locomokbd), GFP_KERNEL);
-	if (!locomokbd)
-		return -ENOMEM;
-
-	memset(locomokbd, 0, sizeof(struct locomokbd));
+	locomokbd = kzalloc(sizeof(struct locomokbd), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!locomokbd || !input_dev) {
+		ret = -ENOMEM;
+		goto free;
+	}
 
 	/* try and claim memory region */
 	if (!request_mem_region((unsigned long) dev->mapbase,
@@ -224,27 +225,26 @@ static int locomokbd_probe(struct locomo_dev *dev)
 	locomokbd->timer.function = locomokbd_timer_callback;
 	locomokbd->timer.data = (unsigned long) locomokbd;
 
-	locomokbd->input.evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
+	locomokbd->input = input_dev;
+	strcpy(locomokbd->phys, "locomokbd/input0");
+
+	input_dev->name = "LoCoMo keyboard";
+	input_dev->phys = locomokbd->phys;
+	input_dev->id.bustype = BUS_XTKBD;
+	input_dev->id.vendor = 0x0001;
+	input_dev->id.product = 0x0001;
+	input_dev->id.version = 0x0100;
+	input_dev->private = locomokbd;
 
-	init_input_dev(&locomokbd->input);
-	locomokbd->input.keycode = locomokbd->keycode;
-	locomokbd->input.keycodesize = sizeof(unsigned char);
-	locomokbd->input.keycodemax = ARRAY_SIZE(locomokbd_keycode);
-	locomokbd->input.private = locomokbd;
+	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
+	input_dev->keycode = locomokbd->keycode;
+	input_dev->keycodesize = sizeof(unsigned char);
+	input_dev->keycodemax = ARRAY_SIZE(locomokbd_keycode);
 
 	memcpy(locomokbd->keycode, locomokbd_keycode, sizeof(locomokbd->keycode));
 	for (i = 0; i < LOCOMOKBD_NUMKEYS; i++)
-		set_bit(locomokbd->keycode[i], locomokbd->input.keybit);
-	clear_bit(0, locomokbd->input.keybit);
-
-	strcpy(locomokbd->phys, "locomokbd/input0");
-
-	locomokbd->input.name = "LoCoMo keyboard";
-	locomokbd->input.phys = locomokbd->phys;
-	locomokbd->input.id.bustype = BUS_XTKBD;
-	locomokbd->input.id.vendor = 0x0001;
-	locomokbd->input.id.product = 0x0001;
-	locomokbd->input.id.version = 0x0100;
+		set_bit(locomokbd->keycode[i], input_dev->keybit);
+	clear_bit(0, input_dev->keybit);
 
 	/* attempt to get the interrupt */
 	ret = request_irq(dev->irq[0], locomokbd_interrupt, 0, "locomokbd", locomokbd);
@@ -253,9 +253,7 @@ static int locomokbd_probe(struct locomo_dev *dev)
 		goto out;
 	}
 
-	input_register_device(&locomokbd->input);
-
-	printk(KERN_INFO "input: LoCoMo keyboard on locomokbd\n");
+	input_register_device(locomokbd->input);
 
 	return 0;
 
@@ -263,6 +261,7 @@ static int locomokbd_probe(struct locomo_dev *dev)
 	release_mem_region((unsigned long) dev->mapbase, dev->length);
 	locomo_set_drvdata(dev, NULL);
 free:
+	input_free_device(input_dev);
 	kfree(locomokbd);
 
 	return ret;
@@ -276,7 +275,7 @@ static int locomokbd_remove(struct locomo_dev *dev)
 
 	del_timer_sync(&locomokbd->timer);
 
-	input_unregister_device(&locomokbd->input);
+	input_unregister_device(locomokbd->input);
 	locomo_set_drvdata(dev, NULL);
 
 	release_mem_region((unsigned long) dev->mapbase, dev->length);