USB: usblcd, fix memory leak

Stanse found a memory leak in lcd_probe. Instead of returning without
releasing the memory, jump to the error label which frees it.

http://stanse.fi.muni.cz/

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c
index 29092b8..4fb1203 100644
--- a/drivers/usb/misc/usblcd.c
+++ b/drivers/usb/misc/usblcd.c
@@ -313,7 +313,8 @@
 
 	if (le16_to_cpu(dev->udev->descriptor.idProduct) != 0x0001) {
 		dev_warn(&interface->dev, "USBLCD model not supported.\n");
-		return -ENODEV;
+		retval = -ENODEV;
+		goto error;
 	}
 	
 	/* set up the endpoint information */