Input: psmouse - fix input_dev leak in lifebook driver

The lifebook driver may register a second input device, but it never
unregisters it.  This fixes that.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/input/mouse/lifebook.c b/drivers/input/mouse/lifebook.c
index 9ec57d80186e..df81b0aaa9f8 100644
--- a/drivers/input/mouse/lifebook.c
+++ b/drivers/input/mouse/lifebook.c
@@ -225,8 +225,13 @@ static void lifebook_set_resolution(struct psmouse *psmouse, unsigned int resolu
 
 static void lifebook_disconnect(struct psmouse *psmouse)
 {
+        struct lifebook_data *priv = psmouse->private;
+
         psmouse_reset(psmouse);
-        kfree(psmouse->private);
+        if (priv) {
+                input_unregister_device(priv->dev2);
+                kfree(priv);
+        }
         psmouse->private = NULL;
 }