[PARISC] Convert HIL drivers to use input_allocate_device

Convert HIL drivers to use input_allocate_device() - avoids crashes.

Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

3 files changed, 109 insertions, 93 deletions

diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
index 0a90962c38e..99f8c5b4cd5 100644
--- a/drivers/input/keyboard/hil_kbd.c
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -66,7 +66,7 @@ static unsigned int hil_kbd_set3[HIL_KEYCODES_SET3_TBLSIZE] =
 static char hil_language[][16] = { HIL_LOCALE_MAP };
 
 struct hil_kbd {
-	struct input_dev dev;
+	struct input_dev *dev;
 	struct serio *serio;
 
 	/* Input buffer and index for packets from HIL bus. */
@@ -86,7 +86,7 @@ struct hil_kbd {
 /* Process a complete packet after transfer from the HIL */
 static void hil_kbd_process_record(struct hil_kbd *kbd)
 {
-	struct input_dev *dev = &kbd->dev;
+	struct input_dev *dev = kbd->dev;
 	hil_packet *data = kbd->data;
 	hil_packet p;
 	int idx, i, cnt;
@@ -240,8 +240,9 @@ static void hil_kbd_disconnect(struct serio *serio)
 		return;
 	}
 
-	input_unregister_device(&kbd->dev);
+	input_unregister_device(kbd->dev);
 	serio_close(serio);
+	input_free_device(kbd->dev);
 	kfree(kbd);
 }
 
@@ -251,16 +252,18 @@ static int hil_kbd_connect(struct serio *serio, struct serio_driver *drv)
 	uint8_t		did, *idd;
 	int		i;
 	
-	kbd = kmalloc(sizeof(*kbd), GFP_KERNEL);
+	kbd = kzalloc(sizeof(*kbd), GFP_KERNEL);
 	if (!kbd)
 		return -ENOMEM;
-	memset(kbd, 0, sizeof(struct hil_kbd));
+
+	kbd->dev = input_allocate_device();
+	if (!kbd->dev) goto bail1;
+	kbd->dev->private = kbd;
 
 	if (serio_open(serio, drv)) goto bail0;
 
 	serio_set_drvdata(serio, kbd);
 	kbd->serio = serio;
-	kbd->dev.private = kbd;
 
 	init_MUTEX_LOCKED(&(kbd->sem));
 
@@ -302,38 +305,38 @@ static int hil_kbd_connect(struct serio *serio, struct serio_driver *drv)
 			did, hil_language[did & HIL_IDD_DID_TYPE_KB_LANG_MASK]);
 		break;
 	default:
-		goto bail1;
+		goto bail2;
 	}
 
 	if(HIL_IDD_NUM_BUTTONS(idd) || HIL_IDD_NUM_AXES_PER_SET(*idd)) {
 		printk(KERN_INFO PREFIX "keyboards only, no combo devices supported.\n");
-		goto bail1;
+		goto bail2;
 	}
 
 
-	kbd->dev.evbit[0]	= BIT(EV_KEY) | BIT(EV_REP);
-	kbd->dev.ledbit[0]	= BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
-	kbd->dev.keycodemax	= HIL_KEYCODES_SET1_TBLSIZE;
-	kbd->dev.keycodesize	= sizeof(hil_kbd_set1[0]);
-	kbd->dev.keycode	= hil_kbd_set1;
-	kbd->dev.name		= strlen(kbd->rnm) ? kbd->rnm : HIL_GENERIC_NAME;
-	kbd->dev.phys		= "hpkbd/input0";	/* XXX */
+	kbd->dev->evbit[0]	= BIT(EV_KEY) | BIT(EV_REP);
+	kbd->dev->ledbit[0]	= BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
+	kbd->dev->keycodemax	= HIL_KEYCODES_SET1_TBLSIZE;
+	kbd->dev->keycodesize	= sizeof(hil_kbd_set1[0]);
+	kbd->dev->keycode	= hil_kbd_set1;
+	kbd->dev->name		= strlen(kbd->rnm) ? kbd->rnm : HIL_GENERIC_NAME;
+	kbd->dev->phys		= "hpkbd/input0";	/* XXX */
 
-	kbd->dev.id.bustype	= BUS_HIL;
-	kbd->dev.id.vendor	= PCI_VENDOR_ID_HP;
-	kbd->dev.id.product	= 0x0001; /* TODO: get from kbd->rsc */
-	kbd->dev.id.version	= 0x0100; /* TODO: get from kbd->rsc */
-	kbd->dev.dev		= &serio->dev;
+	kbd->dev->id.bustype	= BUS_HIL;
+	kbd->dev->id.vendor	= PCI_VENDOR_ID_HP;
+	kbd->dev->id.product	= 0x0001; /* TODO: get from kbd->rsc */
+	kbd->dev->id.version	= 0x0100; /* TODO: get from kbd->rsc */
+	kbd->dev->dev		= &serio->dev;
 
 	for (i = 0; i < 128; i++) {
-		set_bit(hil_kbd_set1[i], kbd->dev.keybit);
-		set_bit(hil_kbd_set3[i], kbd->dev.keybit);
+		set_bit(hil_kbd_set1[i], kbd->dev->keybit);
+		set_bit(hil_kbd_set3[i], kbd->dev->keybit);
 	}
-	clear_bit(0, kbd->dev.keybit);
+	clear_bit(0, kbd->dev->keybit);
 
-	input_register_device(&kbd->dev);
+	input_register_device(kbd->dev);
 	printk(KERN_INFO "input: %s, ID: %d\n",
-		kbd->dev.name, did);
+		kbd->dev->name, did);
 
 	serio->write(serio, 0);
 	serio->write(serio, 0);
@@ -343,8 +346,10 @@ static int hil_kbd_connect(struct serio *serio, struct serio_driver *drv)
 	up(&(kbd->sem));
 
 	return 0;
- bail1:
+ bail2:
 	serio_close(serio);
+ bail1:
+	input_free_device(kbd->dev);
  bail0:
 	kfree(kbd);
 	serio_set_drvdata(serio, NULL);
diff --git a/drivers/input/keyboard/hilkbd.c b/drivers/input/keyboard/hilkbd.c
index e95bc052e32..452c5f3e612 100644
--- a/drivers/input/keyboard/hilkbd.c
+++ b/drivers/input/keyboard/hilkbd.c
@@ -3,7 +3,7 @@
  *
  *  Copyright (C) 1998 Philip Blundell <philb@gnu.org>
  *  Copyright (C) 1999 Matthew Wilcox <willy@bofh.ai>
- *  Copyright (C) 1999-2003 Helge Deller <deller@gmx.de>
+ *  Copyright (C) 1999-2006 Helge Deller <deller@gmx.de>
  *
  *  Very basic HP Human Interface Loop (HIL) driver.
  *  This driver handles the keyboard on HP300 (m68k) and on some 
@@ -90,7 +90,7 @@ static unsigned int hphilkeyb_keycode[HIL_KEYCODES_SET1_TBLSIZE] =
 
 /* HIL structure */
 static struct {
-	struct input_dev dev;
+	struct input_dev *dev;
 
 	unsigned int curdev;
 	
@@ -117,7 +117,7 @@ static void poll_finished(void)
 		down = (hil_dev.data[1] & 1) == 0;
 		scode = hil_dev.data[1] >> 1;
 		key = hphilkeyb_keycode[scode];
-		input_report_key(&hil_dev.dev, key, down);
+		input_report_key(hil_dev.dev, key, down);
 		break;
 	}
 	hil_dev.curdev = 0;
@@ -207,9 +207,14 @@ hil_keyb_init(void)
 	unsigned int i, kbid;
 	wait_queue_head_t hil_wait;
 
-	if (hil_dev.dev.id.bustype) {
+	if (hil_dev.dev) {
 		return -ENODEV; /* already initialized */
 	}
+
+	hil_dev.dev = input_allocate_device();
+	if (!hil_dev.dev)
+		return -ENOMEM;
+	hil_dev.dev->private = &hil_dev;
 	
 #if defined(CONFIG_HP300)
 	if (!hwreg_present((void *)(HILBASE + HIL_DATA)))
@@ -247,28 +252,26 @@ hil_keyb_init(void)
 	c = 0;
 	hil_do(HIL_WRITEKBDSADR, &c, 1);
 	
-	init_input_dev(&hil_dev.dev);
-
 	for (i = 0; i < HIL_KEYCODES_SET1_TBLSIZE; i++)
 		if (hphilkeyb_keycode[i] != KEY_RESERVED)
-			set_bit(hphilkeyb_keycode[i], hil_dev.dev.keybit);
-
-	hil_dev.dev.evbit[0]    = BIT(EV_KEY) | BIT(EV_REP);
-	hil_dev.dev.ledbit[0]   = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
-	hil_dev.dev.keycodemax  = HIL_KEYCODES_SET1_TBLSIZE;
-        hil_dev.dev.keycodesize = sizeof(hphilkeyb_keycode[0]);
-	hil_dev.dev.keycode     = hphilkeyb_keycode;
-	hil_dev.dev.name 	= "HIL keyboard";
-	hil_dev.dev.phys 	= "hpkbd/input0";
-
-	hil_dev.dev.id.bustype	= BUS_HIL;
-	hil_dev.dev.id.vendor	= PCI_VENDOR_ID_HP;
-	hil_dev.dev.id.product	= 0x0001;
-	hil_dev.dev.id.version	= 0x0010;
-
-	input_register_device(&hil_dev.dev);
+			set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit);
+
+	hil_dev.dev->evbit[0]    = BIT(EV_KEY) | BIT(EV_REP);
+	hil_dev.dev->ledbit[0]   = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
+	hil_dev.dev->keycodemax  = HIL_KEYCODES_SET1_TBLSIZE;
+	hil_dev.dev->keycodesize = sizeof(hphilkeyb_keycode[0]);
+	hil_dev.dev->keycode     = hphilkeyb_keycode;
+	hil_dev.dev->name 	= "HIL keyboard";
+	hil_dev.dev->phys 	= "hpkbd/input0";
+
+	hil_dev.dev->id.bustype	= BUS_HIL;
+	hil_dev.dev->id.vendor	= PCI_VENDOR_ID_HP;
+	hil_dev.dev->id.product	= 0x0001;
+	hil_dev.dev->id.version	= 0x0010;
+
+	input_register_device(hil_dev.dev);
 	printk(KERN_INFO "input: %s, ID %d at 0x%08lx (irq %d) found and attached\n",
-		hil_dev.dev.name, kbid, HILBASE, HIL_IRQ);
+		hil_dev.dev->name, kbid, HILBASE, HIL_IRQ);
 
 	return 0;
 }
@@ -329,7 +332,10 @@ static void __exit hil_exit(void)
 	/* Turn off interrupts */
 	hil_do(HIL_INTOFF, NULL, 0);
 
-	input_unregister_device(&hil_dev.dev);
+	input_unregister_device(hil_dev.dev);
+
+	input_free_device(hil_dev.dev);
+	hil_dev.dev = NULL;
 
 #if defined(CONFIG_PARISC)
 	unregister_parisc_driver(&hil_driver);
diff --git a/drivers/input/mouse/hil_ptr.c b/drivers/input/mouse/hil_ptr.c
index c2bf2ed07dc..a648f9fe3d9 100644
--- a/drivers/input/mouse/hil_ptr.c
+++ b/drivers/input/mouse/hil_ptr.c
@@ -55,7 +55,7 @@ MODULE_LICENSE("Dual BSD/GPL");
 #define HIL_PTR_MAX_LENGTH 16
 
 struct hil_ptr {
-	struct input_dev dev;
+	struct input_dev *dev;
 	struct serio *serio;
 
 	/* Input buffer and index for packets from HIL bus. */
@@ -79,7 +79,7 @@ struct hil_ptr {
 /* Process a complete packet after transfer from the HIL */
 static void hil_ptr_process_record(struct hil_ptr *ptr)
 {
-	struct input_dev *dev = &ptr->dev;
+	struct input_dev *dev = ptr->dev;
 	hil_packet *data = ptr->data;
 	hil_packet p;
 	int idx, i, cnt, laxis;
@@ -148,12 +148,12 @@ static void hil_ptr_process_record(struct hil_ptr *ptr)
 		if (absdev) {
 			val = lo + (hi<<8);
 #ifdef TABLET_AUTOADJUST
-			if (val < ptr->dev.absmin[ABS_X + i])
-				ptr->dev.absmin[ABS_X + i] = val;
-			if (val > ptr->dev.absmax[ABS_X + i])
-				ptr->dev.absmax[ABS_X + i] = val;
+			if (val < dev->absmin[ABS_X + i])
+				dev->absmin[ABS_X + i] = val;
+			if (val > dev->absmax[ABS_X + i])
+				dev->absmax[ABS_X + i] = val;
 #endif
-			if (i%3) val = ptr->dev.absmax[ABS_X + i] - val;
+			if (i%3) val = dev->absmax[ABS_X + i] - val;
 			input_report_abs(dev, ABS_X + i, val);
 		} else {
 			val = (int) (((int8_t)lo) | ((int8_t)hi<<8));
@@ -233,26 +233,30 @@ static void hil_ptr_disconnect(struct serio *serio)
 		return;
 	}
 
-	input_unregister_device(&ptr->dev);
+	input_unregister_device(ptr->dev);
 	serio_close(serio);
+	input_free_device(ptr->dev);
 	kfree(ptr);
 }
 
 static int hil_ptr_connect(struct serio *serio, struct serio_driver *driver)
 {
-	struct hil_ptr	*ptr;
-	char		*txt;
-	unsigned int	i, naxsets, btntype;
-	uint8_t		did, *idd;
+	struct hil_ptr	 *ptr;
+	char		 *txt;
+	unsigned int	 i, naxsets, btntype;
+	uint8_t		 did, *idd;
 
-	if (!(ptr = kmalloc(sizeof(struct hil_ptr), GFP_KERNEL))) return -ENOMEM;
-	memset(ptr, 0, sizeof(struct hil_ptr));
+	if (!(ptr = kzalloc(sizeof(struct hil_ptr), GFP_KERNEL)))
+		return -ENOMEM;
 
-	if (serio_open(serio, driver)) goto bail0;
+	ptr->dev = input_allocate_device();
+	if (!ptr->dev) goto bail0;
+	ptr->dev->private = ptr;
+
+	if (serio_open(serio, driver)) goto bail1;
 
 	serio_set_drvdata(serio, ptr);
 	ptr->serio = serio;
-	ptr->dev.private = ptr;
 
 	init_MUTEX_LOCKED(&(ptr->sem));
 
@@ -283,25 +287,24 @@ static int hil_ptr_connect(struct serio *serio, struct serio_driver *driver)
 
 	up(&(ptr->sem));
 
-	init_input_dev(&ptr->dev);
 	did = ptr->idd[0];
 	idd = ptr->idd + 1;
 	txt = "unknown";
 	if ((did & HIL_IDD_DID_TYPE_MASK) == HIL_IDD_DID_TYPE_REL) {
-		ptr->dev.evbit[0] = BIT(EV_REL);
+		ptr->dev->evbit[0] = BIT(EV_REL);
 		txt = "relative";
 	}
 
 	if ((did & HIL_IDD_DID_TYPE_MASK) == HIL_IDD_DID_TYPE_ABS) {
-		ptr->dev.evbit[0] = BIT(EV_ABS);
+		ptr->dev->evbit[0] = BIT(EV_ABS);
 		txt = "absolute";
 	}
-	if (!ptr->dev.evbit[0]) {
-		goto bail1;
+	if (!ptr->dev->evbit[0]) {
+		goto bail2;
 	}
 
 	ptr->nbtn = HIL_IDD_NUM_BUTTONS(idd);
-	if (ptr->nbtn) ptr->dev.evbit[0] |= BIT(EV_KEY);
+	if (ptr->nbtn) ptr->dev->evbit[0] |= BIT(EV_KEY);
 
 	naxsets = HIL_IDD_NUM_AXSETS(*idd);
 	ptr->naxes = HIL_IDD_NUM_AXES_PER_SET(*idd);
@@ -325,7 +328,7 @@ static int hil_ptr_connect(struct serio *serio, struct serio_driver *driver)
 		btntype = BTN_MOUSE;
 
 	for (i = 0; i < ptr->nbtn; i++) {
-		set_bit(btntype | i, ptr->dev.keybit);
+		set_bit(btntype | i, ptr->dev->keybit);
 		ptr->btnmap[i] = btntype | i;
 	}
 
@@ -337,50 +340,52 @@ static int hil_ptr_connect(struct serio *serio, struct serio_driver *driver)
 
 	if ((did & HIL_IDD_DID_TYPE_MASK) == HIL_IDD_DID_TYPE_REL) {
 		for (i = 0; i < ptr->naxes; i++) {
-			set_bit(REL_X + i, ptr->dev.relbit);
+			set_bit(REL_X + i, ptr->dev->relbit);
 		}
 		for (i = 3; (i < ptr->naxes + 3) && (naxsets > 1); i++) {
-			set_bit(REL_X + i, ptr->dev.relbit);
+			set_bit(REL_X + i, ptr->dev->relbit);
 		}
 	} else {
 		for (i = 0; i < ptr->naxes; i++) {
-	  		set_bit(ABS_X + i, ptr->dev.absbit);
-			ptr->dev.absmin[ABS_X + i] = 0;
-			ptr->dev.absmax[ABS_X + i] = 
+			set_bit(ABS_X + i, ptr->dev->absbit);
+			ptr->dev->absmin[ABS_X + i] = 0;
+			ptr->dev->absmax[ABS_X + i] =
 				HIL_IDD_AXIS_MAX((ptr->idd + 1), i);
 		}
 		for (i = 3; (i < ptr->naxes + 3) && (naxsets > 1); i++) {
-			set_bit(ABS_X + i, ptr->dev.absbit);
-			ptr->dev.absmin[ABS_X + i] = 0;
-			ptr->dev.absmax[ABS_X + i] = 
+			set_bit(ABS_X + i, ptr->dev->absbit);
+			ptr->dev->absmin[ABS_X + i] = 0;
+			ptr->dev->absmax[ABS_X + i] =
 				HIL_IDD_AXIS_MAX((ptr->idd + 1), (i - 3));
 		}
 #ifdef TABLET_AUTOADJUST
 		for (i = 0; i < ABS_MAX; i++) {
-			int diff = ptr->dev.absmax[ABS_X + i] / 10;
-			ptr->dev.absmin[ABS_X + i] += diff;
-			ptr->dev.absmax[ABS_X + i] -= diff;
+			int diff = ptr->dev->absmax[ABS_X + i] / 10;
+			ptr->dev->absmin[ABS_X + i] += diff;
+			ptr->dev->absmax[ABS_X + i] -= diff;
 		}
 #endif
 	}
 
-	ptr->dev.name = strlen(ptr->rnm) ? ptr->rnm : HIL_GENERIC_NAME;
+	ptr->dev->name = strlen(ptr->rnm) ? ptr->rnm : HIL_GENERIC_NAME;
 
-	ptr->dev.id.bustype	= BUS_HIL;
-	ptr->dev.id.vendor	= PCI_VENDOR_ID_HP;
-	ptr->dev.id.product	= 0x0001; /* TODO: get from ptr->rsc */
-	ptr->dev.id.version	= 0x0100; /* TODO: get from ptr->rsc */
-	ptr->dev.dev		= &serio->dev;
+	ptr->dev->id.bustype	= BUS_HIL;
+	ptr->dev->id.vendor	= PCI_VENDOR_ID_HP;
+	ptr->dev->id.product	= 0x0001; /* TODO: get from ptr->rsc */
+	ptr->dev->id.version	= 0x0100; /* TODO: get from ptr->rsc */
+	ptr->dev->dev		= &serio->dev;
 
-	input_register_device(&ptr->dev);
+	input_register_device(ptr->dev);
 	printk(KERN_INFO "input: %s (%s), ID: %d\n",
-                ptr->dev.name, 
+		ptr->dev->name,
 		(btntype == BTN_MOUSE) ? "HIL mouse":"HIL tablet or touchpad",
 		did);
 
 	return 0;
- bail1:
+ bail2:
 	serio_close(serio);
+ bail1:
+	input_free_device(ptr->dev);
  bail0:
 	kfree(ptr);
 	serio_set_drvdata(serio, NULL);