[PATCH] drivers/input/joystick: convert to dynamic input_dev allocation

Input: convert drivers/input/joystick 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, 33 insertions, 38 deletions

diff --git a/drivers/input/joystick/magellan.c b/drivers/input/joystick/magellan.c
index 1ba50362724..ca3cc2319d6 100644
--- a/drivers/input/joystick/magellan.c
+++ b/drivers/input/joystick/magellan.c
@@ -49,14 +49,13 @@ MODULE_LICENSE("GPL");
 
 static int magellan_buttons[] = { BTN_0, BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8 };
 static int magellan_axes[] = { ABS_X, ABS_Y, ABS_Z, ABS_RX, ABS_RY, ABS_RZ };
-static char *magellan_name = "LogiCad3D Magellan / SpaceMouse";
 
 /*
  * Per-Magellan data.
  */
 
 struct magellan {
-	struct input_dev dev;
+	struct input_dev *dev;
 	int idx;
 	unsigned char data[MAGELLAN_MAX_LENGTH];
 	char phys[32];
@@ -85,7 +84,7 @@ static int magellan_crunch_nibbles(unsigned char *data, int count)
 
 static void magellan_process_packet(struct magellan* magellan, struct pt_regs *regs)
 {
-	struct input_dev *dev = &magellan->dev;
+	struct input_dev *dev = magellan->dev;
 	unsigned char *data = magellan->data;
 	int i, t;
 
@@ -138,9 +137,9 @@ static void magellan_disconnect(struct serio *serio)
 {
 	struct magellan* magellan = serio_get_drvdata(serio);
 
-	input_unregister_device(&magellan->dev);
 	serio_close(serio);
 	serio_set_drvdata(serio, NULL);
+	input_unregister_device(magellan->dev);
 	kfree(magellan);
 }
 
@@ -153,52 +152,48 @@ static void magellan_disconnect(struct serio *serio)
 static int magellan_connect(struct serio *serio, struct serio_driver *drv)
 {
 	struct magellan *magellan;
-	int i, t;
-	int err;
-
-	if (!(magellan = kmalloc(sizeof(struct magellan), GFP_KERNEL)))
-		return -ENOMEM;
+	struct input_dev *input_dev;
+	int err = -ENOMEM;
+	int i;
 
-	memset(magellan, 0, sizeof(struct magellan));
+	magellan = kzalloc(sizeof(struct magellan), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!magellan || !input_dev)
+		goto fail;
 
-	magellan->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+	magellan->dev = input_dev;
+	sprintf(magellan->phys, "%s/input0", serio->phys);
 
-	for (i = 0; i < 9; i++)
-		set_bit(magellan_buttons[i], magellan->dev.keybit);
+	input_dev->name = "LogiCad3D Magellan / SpaceMouse";
+	input_dev->phys = magellan->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor = SERIO_MAGELLAN;
+	input_dev->id.product = 0x0001;
+	input_dev->id.version = 0x0100;
+	input_dev->cdev.dev = &serio->dev;
+	input_dev->private = magellan;
 
-	for (i = 0; i < 6; i++) {
-		t = magellan_axes[i];
-		set_bit(t, magellan->dev.absbit);
-		magellan->dev.absmin[t] = -360;
-		magellan->dev.absmax[t] =  360;
-	}
+	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
 
-	sprintf(magellan->phys, "%s/input0", serio->phys);
+	for (i = 0; i < 9; i++)
+		set_bit(magellan_buttons[i], input_dev->keybit);
 
-	init_input_dev(&magellan->dev);
-	magellan->dev.private = magellan;
-	magellan->dev.name = magellan_name;
-	magellan->dev.phys = magellan->phys;
-	magellan->dev.id.bustype = BUS_RS232;
-	magellan->dev.id.vendor = SERIO_MAGELLAN;
-	magellan->dev.id.product = 0x0001;
-	magellan->dev.id.version = 0x0100;
-	magellan->dev.dev = &serio->dev;
+	for (i = 0; i < 6; i++)
+		input_set_abs_params(input_dev, magellan_axes[i], -360, 360, 0, 0);
 
 	serio_set_drvdata(serio, magellan);
 
 	err = serio_open(serio, drv);
-	if (err) {
-		serio_set_drvdata(serio, NULL);
-		kfree(magellan);
-		return err;
-	}
-
-	input_register_device(&magellan->dev);
-
-	printk(KERN_INFO "input: %s on %s\n", magellan_name, serio->phys);
+	if (err)
+		goto fail;
 
+	input_register_device(magellan->dev);
 	return 0;
+
+ fail:	serio_set_drvdata(serio, NULL);
+	input_free_device(input_dev);
+	kfree(magellan);
+	return err;
 }
 
 /*