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path: root/drivers/input/mouse/appletouch.c
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Diffstat (limited to 'drivers/input/mouse/appletouch.c')
-rw-r--r--drivers/input/mouse/appletouch.c24
1 files changed, 18 insertions, 6 deletions
diff --git a/drivers/input/mouse/appletouch.c b/drivers/input/mouse/appletouch.c
index 454b96112f03..e0140fdc02a5 100644
--- a/drivers/input/mouse/appletouch.c
+++ b/drivers/input/mouse/appletouch.c
@@ -255,15 +255,22 @@ MODULE_PARM_DESC(debug, "Activate debugging output");
255 */ 255 */
256static int atp_geyser_init(struct usb_device *udev) 256static int atp_geyser_init(struct usb_device *udev)
257{ 257{
258 char data[8]; 258 char *data;
259 int size; 259 int size;
260 int i; 260 int i;
261 int ret;
262
263 data = kmalloc(8, GFP_KERNEL);
264 if (!data) {
265 err("Out of memory");
266 return -ENOMEM;
267 }
261 268
262 size = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 269 size = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
263 ATP_GEYSER_MODE_READ_REQUEST_ID, 270 ATP_GEYSER_MODE_READ_REQUEST_ID,
264 USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 271 USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
265 ATP_GEYSER_MODE_REQUEST_VALUE, 272 ATP_GEYSER_MODE_REQUEST_VALUE,
266 ATP_GEYSER_MODE_REQUEST_INDEX, &data, 8, 5000); 273 ATP_GEYSER_MODE_REQUEST_INDEX, data, 8, 5000);
267 274
268 if (size != 8) { 275 if (size != 8) {
269 dprintk("atp_geyser_init: read error\n"); 276 dprintk("atp_geyser_init: read error\n");
@@ -271,7 +278,8 @@ static int atp_geyser_init(struct usb_device *udev)
271 dprintk("appletouch[%d]: %d\n", i, data[i]); 278 dprintk("appletouch[%d]: %d\n", i, data[i]);
272 279
273 err("Failed to read mode from device."); 280 err("Failed to read mode from device.");
274 return -EIO; 281 ret = -EIO;
282 goto out_free;
275 } 283 }
276 284
277 /* Apply the mode switch */ 285 /* Apply the mode switch */
@@ -281,7 +289,7 @@ static int atp_geyser_init(struct usb_device *udev)
281 ATP_GEYSER_MODE_WRITE_REQUEST_ID, 289 ATP_GEYSER_MODE_WRITE_REQUEST_ID,
282 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 290 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
283 ATP_GEYSER_MODE_REQUEST_VALUE, 291 ATP_GEYSER_MODE_REQUEST_VALUE,
284 ATP_GEYSER_MODE_REQUEST_INDEX, &data, 8, 5000); 292 ATP_GEYSER_MODE_REQUEST_INDEX, data, 8, 5000);
285 293
286 if (size != 8) { 294 if (size != 8) {
287 dprintk("atp_geyser_init: write error\n"); 295 dprintk("atp_geyser_init: write error\n");
@@ -289,9 +297,13 @@ static int atp_geyser_init(struct usb_device *udev)
289 dprintk("appletouch[%d]: %d\n", i, data[i]); 297 dprintk("appletouch[%d]: %d\n", i, data[i]);
290 298
291 err("Failed to request geyser raw mode"); 299 err("Failed to request geyser raw mode");
292 return -EIO; 300 ret = -EIO;
301 goto out_free;
293 } 302 }
294 return 0; 303 ret = 0;
304out_free:
305 kfree(data);
306 return ret;
295} 307}
296 308
297/* 309/*