[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, 42 deletions

diff --git a/drivers/input/joystick/stinger.c b/drivers/input/joystick/stinger.c
index 6f6e6753d590..0a9ed1d30636 100644
--- a/drivers/input/joystick/stinger.c
+++ b/drivers/input/joystick/stinger.c
@@ -48,14 +48,12 @@ MODULE_LICENSE("GPL");
 
 #define STINGER_MAX_LENGTH 8
 
-static char *stinger_name = "Gravis Stinger";
-
 /*
  * Per-Stinger data.
  */
 
 struct stinger {
-        struct input_dev dev;
+        struct input_dev *dev;
         int idx;
         unsigned char data[STINGER_MAX_LENGTH];
         char phys[32];
@@ -68,7 +66,7 @@ struct stinger {
 
 static void stinger_process_packet(struct stinger *stinger, struct pt_regs *regs)
 {
-        struct input_dev *dev = &stinger->dev;
+        struct input_dev *dev = stinger->dev;
         unsigned char *data = stinger->data;
 
         if (!stinger->idx) return;
@@ -126,9 +124,9 @@ static void stinger_disconnect(struct serio *serio)
 {
         struct stinger *stinger = serio_get_drvdata(serio);
 
-        input_unregister_device(&stinger->dev);
         serio_close(serio);
         serio_set_drvdata(serio, NULL);
+        input_unregister_device(stinger->dev);
         kfree(stinger);
 }
 
@@ -141,53 +139,46 @@ static void stinger_disconnect(struct serio *serio)
 static int stinger_connect(struct serio *serio, struct serio_driver *drv)
 {
         struct stinger *stinger;
-        int i;
-        int err;
-
-        if (!(stinger = kmalloc(sizeof(struct stinger), GFP_KERNEL)))
-                return -ENOMEM;
-
-        memset(stinger, 0, sizeof(struct stinger));
+        struct input_dev *input_dev;
+        int err = -ENOMEM;
 
-        stinger->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
-        stinger->dev.keybit[LONG(BTN_A)] = BIT(BTN_A) | BIT(BTN_B) | BIT(BTN_C) | BIT(BTN_X) | \
-                                           BIT(BTN_Y) | BIT(BTN_Z) | BIT(BTN_TL) | BIT(BTN_TR) | \
-                                           BIT(BTN_START) | BIT(BTN_SELECT);
-        stinger->dev.absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
+        stinger = kmalloc(sizeof(struct stinger), GFP_KERNEL);
+        input_dev = input_allocate_device();
+        if (!stinger || !input_dev)
+                goto fail;
 
+        stinger->dev = input_dev;
         sprintf(stinger->phys, "%s/serio0", serio->phys);
 
-        init_input_dev(&stinger->dev);
-        stinger->dev.name = stinger_name;
-        stinger->dev.phys = stinger->phys;
-        stinger->dev.id.bustype = BUS_RS232;
-        stinger->dev.id.vendor = SERIO_STINGER;
-        stinger->dev.id.product = 0x0001;
-        stinger->dev.id.version = 0x0100;
-        stinger->dev.dev = &serio->dev;
-
-        for (i = 0; i < 2; i++) {
-                stinger->dev.absmax[ABS_X+i] =  64;
-                stinger->dev.absmin[ABS_X+i] = -64;
-                stinger->dev.absflat[ABS_X+i] = 4;
-        }
-
-        stinger->dev.private = stinger;
+        input_dev->name = "Gravis Stinger";
+        input_dev->phys = stinger->phys;
+        input_dev->id.bustype = BUS_RS232;
+        input_dev->id.vendor = SERIO_STINGER;
+        input_dev->id.product = 0x0001;
+        input_dev->id.version = 0x0100;
+        input_dev->cdev.dev = &serio->dev;
+        input_dev->private = stinger;
+
+        input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+        input_dev->keybit[LONG(BTN_A)] = BIT(BTN_A) | BIT(BTN_B) | BIT(BTN_C) | BIT(BTN_X) |
+                                         BIT(BTN_Y) | BIT(BTN_Z) | BIT(BTN_TL) | BIT(BTN_TR) |
+                                         BIT(BTN_START) | BIT(BTN_SELECT);
+        input_set_abs_params(input_dev, ABS_X, -64, 64, 0, 4);
+        input_set_abs_params(input_dev, ABS_Y, -64, 64, 0, 4);
 
         serio_set_drvdata(serio, stinger);
 
         err = serio_open(serio, drv);
-        if (err) {
-                serio_set_drvdata(serio, NULL);
-                kfree(stinger);
-                return err;
-        }
-
-        input_register_device(&stinger->dev);
-
-        printk(KERN_INFO "input: %s on %s\n",  stinger_name, serio->phys);
+        if (err)
+                goto fail;
 
+        input_register_device(stinger->dev);
         return 0;
+
+ fail:  serio_set_drvdata(serio, NULL);
+        input_free_device(input_dev);
+        kfree(stinger);
+        return err;
 }
 
 /*