[2/2] HID: roccat: Fix an error message when reading more data from bin attributes

Commit Message

Stefan Achatz Jan. 6, 2011, 8 a.m. UTC

None

Patch

diff --git a/drivers/hid/hid-roccat-koneplus.c b/drivers/hid/hid-roccat-koneplus.c
index 1608c8d..2df87bb 100644
--- a/drivers/hid/hid-roccat-koneplus.c
+++ b/drivers/hid/hid-roccat-koneplus.c
@@ -256,6 +256,9 @@  static ssize_t koneplus_sysfs_read(struct file *fp, struct kobject *kobj,
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval;
 
+	if (off >= real_size)
+		return 0;
+
 	if (off != 0 || count != real_size)
 		return -EINVAL;