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

Input: convert drivers/input/touchscreen 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, 32 insertions, 32 deletions

diff --git a/drivers/input/touchscreen/mtouch.c b/drivers/input/touchscreen/mtouch.c
index aa8ee7842179..1d0d37eeef6e 100644
--- a/drivers/input/touchscreen/mtouch.c
+++ b/drivers/input/touchscreen/mtouch.c
@@ -51,14 +51,12 @@ MODULE_LICENSE("GPL");
 #define MTOUCH_GET_YC(data) (((data[4])<<7) | data[3])
 #define MTOUCH_GET_TOUCHED(data) (MTOUCH_FORMAT_TABLET_TOUCH_BIT & data[0])
 
-static char *mtouch_name = "MicroTouch Serial TouchScreen";
-
 /*
  * Per-touchscreen data.
  */
 
 struct mtouch {
-        struct input_dev dev;
+        struct input_dev *dev;
         struct serio *serio;
         int idx;
         unsigned char data[MTOUCH_MAX_LENGTH];
@@ -67,7 +65,7 @@ struct mtouch {
 
 static void mtouch_process_format_tablet(struct mtouch *mtouch, struct pt_regs *regs)
 {
-        struct input_dev *dev = &mtouch->dev;
+        struct input_dev *dev = mtouch->dev;
 
         if (MTOUCH_FORMAT_TABLET_LENGTH == ++mtouch->idx) {
                 input_regs(dev, regs);
@@ -116,9 +114,11 @@ static void mtouch_disconnect(struct serio *serio)
 {
         struct mtouch* mtouch = serio_get_drvdata(serio);
 
-        input_unregister_device(&mtouch->dev);
+        input_get_device(mtouch->dev);
+        input_unregister_device(mtouch->dev);
         serio_close(serio);
         serio_set_drvdata(serio, NULL);
+        input_put_device(mtouch->dev);
         kfree(mtouch);
 }
 
@@ -131,46 +131,46 @@ static void mtouch_disconnect(struct serio *serio)
 static int mtouch_connect(struct serio *serio, struct serio_driver *drv)
 {
         struct mtouch *mtouch;
+        struct input_dev *input_dev;
         int err;
 
-        if (!(mtouch = kmalloc(sizeof(*mtouch), GFP_KERNEL)))
-                return -ENOMEM;
-
-        memset(mtouch, 0, sizeof(*mtouch));
-
-        init_input_dev(&mtouch->dev);
-        mtouch->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
-        mtouch->dev.keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
-
-        input_set_abs_params(&mtouch->dev, ABS_X, MTOUCH_MIN_XC, MTOUCH_MAX_XC, 0, 0);
-        input_set_abs_params(&mtouch->dev, ABS_Y, MTOUCH_MIN_YC, MTOUCH_MAX_YC, 0, 0);
+        mtouch = kzalloc(sizeof(struct mtouch), GFP_KERNEL);
+        input_dev = input_allocate_device();
+        if (!mtouch || !input_dev) {
+                err = -ENOMEM;
+                goto fail;
+        }
 
         mtouch->serio = serio;
-
+        mtouch->dev = input_dev;
         sprintf(mtouch->phys, "%s/input0", serio->phys);
 
-        mtouch->dev.private = mtouch;
-        mtouch->dev.name = mtouch_name;
-        mtouch->dev.phys = mtouch->phys;
-        mtouch->dev.id.bustype = BUS_RS232;
-        mtouch->dev.id.vendor = SERIO_MICROTOUCH;
-        mtouch->dev.id.product = 0;
-        mtouch->dev.id.version = 0x0100;
+        input_dev->private = mtouch;
+        input_dev->name = "MicroTouch Serial TouchScreen";
+        input_dev->phys = mtouch->phys;
+        input_dev->id.bustype = BUS_RS232;
+        input_dev->id.vendor = SERIO_MICROTOUCH;
+        input_dev->id.product = 0;
+        input_dev->id.version = 0x0100;
+        input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+        input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+        input_set_abs_params(mtouch->dev, ABS_X, MTOUCH_MIN_XC, MTOUCH_MAX_XC, 0, 0);
+        input_set_abs_params(mtouch->dev, ABS_Y, MTOUCH_MIN_YC, MTOUCH_MAX_YC, 0, 0);
 
         serio_set_drvdata(serio, mtouch);
 
         err = serio_open(serio, drv);
-        if (err) {
-                serio_set_drvdata(serio, NULL);
-                kfree(mtouch);
-                return err;
-        }
-
-        input_register_device(&mtouch->dev);
+        if (err)
+                goto fail;
 
-        printk(KERN_INFO "input: %s on %s\n", mtouch->dev.name, serio->phys);
+        input_register_device(mtouch->dev);
 
         return 0;
+
+ fail:  serio_set_drvdata(serio, NULL);
+        input_free_device(input_dev);
+        kfree(mtouch);
+        return err;
 }
 
 /*