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path: root/drivers/input/mouse/maplemouse.c
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Diffstat (limited to 'drivers/input/mouse/maplemouse.c')
-rw-r--r--drivers/input/mouse/maplemouse.c43
1 files changed, 23 insertions, 20 deletions
diff --git a/drivers/input/mouse/maplemouse.c b/drivers/input/mouse/maplemouse.c
index d196abfb68b..5f278176eb9 100644
--- a/drivers/input/mouse/maplemouse.c
+++ b/drivers/input/mouse/maplemouse.c
@@ -2,8 +2,8 @@
* SEGA Dreamcast mouse driver
* Based on drivers/usb/usbmouse.c
*
- * Copyright Yaegashi Takeshi, 2001
- * Adrian McMenamin, 2008
+ * Copyright (c) Yaegashi Takeshi, 2001
+ * Copyright (c) Adrian McMenamin, 2008 - 2009
*/
#include <linux/kernel.h>
@@ -29,7 +29,7 @@ static void dc_mouse_callback(struct mapleq *mq)
struct maple_device *mapledev = mq->dev;
struct dc_mouse *mse = maple_get_drvdata(mapledev);
struct input_dev *dev = mse->dev;
- unsigned char *res = mq->recvbuf;
+ unsigned char *res = mq->recvbuf->buf;
buttons = ~res[8];
relx = *(unsigned short *)(res + 12) - 512;
@@ -47,7 +47,7 @@ static void dc_mouse_callback(struct mapleq *mq)
static int dc_mouse_open(struct input_dev *dev)
{
- struct dc_mouse *mse = dev->dev.platform_data;
+ struct dc_mouse *mse = maple_get_drvdata(to_maple_dev(&dev->dev));
maple_getcond_callback(mse->mdev, dc_mouse_callback, HZ/50,
MAPLE_FUNC_MOUSE);
@@ -57,29 +57,33 @@ static int dc_mouse_open(struct input_dev *dev)
static void dc_mouse_close(struct input_dev *dev)
{
- struct dc_mouse *mse = dev->dev.platform_data;
+ struct dc_mouse *mse = maple_get_drvdata(to_maple_dev(&dev->dev));
maple_getcond_callback(mse->mdev, dc_mouse_callback, 0,
MAPLE_FUNC_MOUSE);
}
-
+/* allow the mouse to be used */
static int __devinit probe_maple_mouse(struct device *dev)
{
struct maple_device *mdev = to_maple_dev(dev);
struct maple_driver *mdrv = to_maple_driver(dev->driver);
+ int error;
struct input_dev *input_dev;
struct dc_mouse *mse;
- int error;
mse = kzalloc(sizeof(struct dc_mouse), GFP_KERNEL);
- input_dev = input_allocate_device();
-
- if (!mse || !input_dev) {
+ if (!mse) {
error = -ENOMEM;
goto fail;
}
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ error = -ENOMEM;
+ goto fail_nomem;
+ }
+
mse->dev = input_dev;
mse->mdev = mdev;
@@ -89,25 +93,24 @@ static int __devinit probe_maple_mouse(struct device *dev)
BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) |
BIT_MASK(REL_WHEEL);
- input_dev->name = mdev->product_name;
- input_dev->id.bustype = BUS_HOST;
input_dev->open = dc_mouse_open;
input_dev->close = dc_mouse_close;
+ input_dev->name = mdev->product_name;
+ input_dev->id.bustype = BUS_HOST;
+ error = input_register_device(input_dev);
+ if (error)
+ goto fail_register;
mdev->driver = mdrv;
maple_set_drvdata(mdev, mse);
- error = input_register_device(input_dev);
- if (error)
- goto fail;
-
- return 0;
+ return error;
-fail:
+fail_register:
input_free_device(input_dev);
- maple_set_drvdata(mdev, NULL);
+fail_nomem:
kfree(mse);
- mdev->driver = NULL;
+fail:
return error;
}