From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Date: Tue, 17 Nov 2015 17:33:14 +0000 (-0800)
Subject: Input: db9 - clear unused function pointers
X-Git-Tag: v4.4-rc6~10^2~11
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=42beaccb2a66d7dc4a051a686122ed41c9a2ce1a;p=linux.git

Input: db9 - clear unused function pointers

db9_parport_cb is a local uninitialized structure and the member
function pointers will be pointing to arbitrary locations unless they
are cleared.

Fixes: 2260c419b52b ("Input: db9 - 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/db9.c b/drivers/input/joystick/db9.c
index 932d07307454..da326090c2b0 100644
--- a/drivers/input/joystick/db9.c
+++ b/drivers/input/joystick/db9.c
@@ -592,6 +592,7 @@ static void db9_attach(struct parport *pp)
 		return;
 	}
 
+	memset(&db9_parport_cb, 0, sizeof(db9_parport_cb));
 	db9_parport_cb.flags = PARPORT_FLAG_EXCL;
 
 	pd = parport_register_dev_model(pp, "db9", &db9_parport_cb, port_idx);