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

Input: convert drivers/input/mouse 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, 45 insertions, 43 deletions

diff --git a/drivers/input/mouse/logibm.c b/drivers/input/mouse/logibm.c
index 8b524316722..9c7ce38806d 100644
--- a/drivers/input/mouse/logibm.c
+++ b/drivers/input/mouse/logibm.c
@@ -77,39 +77,7 @@ MODULE_PARM_DESC(irq, "IRQ number (5=default)");
 
 __obsolete_setup("logibm_irq=");
 
-static irqreturn_t logibm_interrupt(int irq, void *dev_id, struct pt_regs *regs);
-
-static int logibm_open(struct input_dev *dev)
-{
-	if (request_irq(logibm_irq, logibm_interrupt, 0, "logibm", NULL)) {
-		printk(KERN_ERR "logibm.c: Can't allocate irq %d\n", logibm_irq);
-		return -EBUSY;
-	}
-	outb(LOGIBM_ENABLE_IRQ, LOGIBM_CONTROL_PORT);
-	return 0;
-}
-
-static void logibm_close(struct input_dev *dev)
-{
-	outb(LOGIBM_DISABLE_IRQ, LOGIBM_CONTROL_PORT);
-	free_irq(logibm_irq, NULL);
-}
-
-static struct input_dev logibm_dev = {
-	.evbit	= { BIT(EV_KEY) | BIT(EV_REL) },
-	.keybit = { [LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT) },
-	.relbit	= { BIT(REL_X) | BIT(REL_Y) },
-	.open	= logibm_open,
-	.close	= logibm_close,
-	.name	= "Logitech bus mouse",
-	.phys	= "isa023c/input0",
-	.id	= {
-		.bustype = BUS_ISA,
-		.vendor  = 0x0003,
-		.product = 0x0001,
-		.version = 0x0100,
-	},
-};
+static struct input_dev *logibm_dev;
 
 static irqreturn_t logibm_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
@@ -127,18 +95,34 @@ static irqreturn_t logibm_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	dy |= (buttons & 0xf) << 4;
 	buttons = ~buttons >> 5;
 
-	input_regs(&logibm_dev, regs);
-	input_report_rel(&logibm_dev, REL_X, dx);
-	input_report_rel(&logibm_dev, REL_Y, dy);
-	input_report_key(&logibm_dev, BTN_RIGHT,  buttons & 1);
-	input_report_key(&logibm_dev, BTN_MIDDLE, buttons & 2);
-	input_report_key(&logibm_dev, BTN_LEFT,   buttons & 4);
-	input_sync(&logibm_dev);
+	input_regs(logibm_dev, regs);
+	input_report_rel(logibm_dev, REL_X, dx);
+	input_report_rel(logibm_dev, REL_Y, dy);
+	input_report_key(logibm_dev, BTN_RIGHT,  buttons & 1);
+	input_report_key(logibm_dev, BTN_MIDDLE, buttons & 2);
+	input_report_key(logibm_dev, BTN_LEFT,   buttons & 4);
+	input_sync(logibm_dev);
 
 	outb(LOGIBM_ENABLE_IRQ, LOGIBM_CONTROL_PORT);
 	return IRQ_HANDLED;
 }
 
+static int logibm_open(struct input_dev *dev)
+{
+	if (request_irq(logibm_irq, logibm_interrupt, 0, "logibm", NULL)) {
+		printk(KERN_ERR "logibm.c: Can't allocate irq %d\n", logibm_irq);
+		return -EBUSY;
+	}
+	outb(LOGIBM_ENABLE_IRQ, LOGIBM_CONTROL_PORT);
+	return 0;
+}
+
+static void logibm_close(struct input_dev *dev)
+{
+	outb(LOGIBM_DISABLE_IRQ, LOGIBM_CONTROL_PORT);
+	free_irq(logibm_irq, NULL);
+}
+
 static int __init logibm_init(void)
 {
 	if (!request_region(LOGIBM_BASE, LOGIBM_EXTENT, "logibm")) {
@@ -159,16 +143,34 @@ static int __init logibm_init(void)
 	outb(LOGIBM_DEFAULT_MODE, LOGIBM_CONFIG_PORT);
 	outb(LOGIBM_DISABLE_IRQ, LOGIBM_CONTROL_PORT);
 
-	input_register_device(&logibm_dev);
+	if (!(logibm_dev = input_allocate_device())) {
+		printk(KERN_ERR "logibm.c: Not enough memory for input device\n");
+		release_region(LOGIBM_BASE, LOGIBM_EXTENT);
+		return -ENOMEM;
+	}
+
+	logibm_dev->name = "Logitech bus mouse";
+	logibm_dev->phys = "isa023c/input0";
+	logibm_dev->id.bustype = BUS_ISA;
+	logibm_dev->id.vendor  = 0x0003;
+	logibm_dev->id.product = 0x0001;
+	logibm_dev->id.version = 0x0100;
+
+	logibm_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
+	logibm_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
+	logibm_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
+
+	logibm_dev->open  = logibm_open;
+	logibm_dev->close = logibm_close;
 
-	printk(KERN_INFO "input: Logitech bus mouse at %#x irq %d\n", LOGIBM_BASE, logibm_irq);
+	input_register_device(logibm_dev);
 
 	return 0;
 }
 
 static void __exit logibm_exit(void)
 {
-	input_unregister_device(&logibm_dev);
+	input_unregister_device(logibm_dev);
 	release_region(LOGIBM_BASE, LOGIBM_EXTENT);
 }