diff options
Diffstat (limited to 'drivers/input/touchscreen/usbtouchscreen.c')
| -rw-r--r-- | drivers/input/touchscreen/usbtouchscreen.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c index 657555c8796c..866d4a7fbe42 100644 --- a/drivers/input/touchscreen/usbtouchscreen.c +++ b/drivers/input/touchscreen/usbtouchscreen.c @@ -1070,6 +1070,11 @@ static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt) if (x_len > 0xff) x_len -= 0x80; + if (data_len > usbtouch->data_size - sizeof(*packet)) + data_len = usbtouch->data_size - sizeof(*packet); + if (x_len > data_len) + x_len = data_len; + /* send ACK */ ret = usb_submit_urb(priv->ack, GFP_ATOMIC); if (ret) |