Input: walkera0701 - clear unused function pointers

walkera0701_parport_cb is a local uninitialized structure and the member
function pointers will be pointing to arbitrary locations unless they
are cleared.

Fixes: 221bcb24c653 ("Input: walkera0701 - use parallel port device model")
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/joystick/walkera0701.c b/drivers/input/joystick/walkera0701.c
index d88f5dd3c9d9e9a7080cbd9bacecb740e0791488..413e343f55f7c5466befe284c8fc92709127acae 100644 (file)
--- a/drivers/input/joystick/walkera0701.c
+++ b/drivers/input/joystick/walkera0701.c
@@ -218,6 +218,7 @@ static void walkera0701_attach(struct parport *pp)
 
        w->parport = pp;
 
+       memset(&walkera0701_parport_cb, 0, sizeof(walkera0701_parport_cb));
        walkera0701_parport_cb.flags = PARPORT_FLAG_EXCL;
        walkera0701_parport_cb.irq_func = walkera0701_irq_handler;
        walkera0701_parport_cb.private = w;