Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/dtor/input

* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/dtor/input: (65 commits)
  Input: gpio_keys - add support for switches (EV_SW)
  Input: cobalt_btns - convert to use polldev library
  Input: add skeleton for simple polled devices
  Input: update some documentation
  Input: wistron - fix typo in keymap for Acer TM610
  Input: add input_set_capability() helper
  Input: i8042 - add Fujitsu touchscreen/touchpad PNP IDs
  Input: i8042 - add Panasonic CF-29 to nomux list
  Input: lifebook - split into 2 devices
  Input: lifebook - add signature of Panasonic CF-29
  Input: lifebook - activate 6-byte protocol on select models
  Input: lifebook - work properly on Panasonic CF-18
  Input: cobalt buttons - separate device and driver registration
  Input: ati_remote - make button repeat sensitivity configurable
  Input: pxa27x - do not use deprecated SA_INTERRUPT flag
  Input: ucb1400 - make delays configurable
  Input: misc devices - switch to using input_dev->dev.parent
  Input: joysticks - switch to using input_dev->dev.parent
  Input: touchscreens - switch to using input_dev->dev.parent
  Input: mice - switch to using input_dev->dev.parent
  ...

Fixed up conflicts with core device model removal of "struct subsystem" manually.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/input/mouse/logips2pp.c b/drivers/input/mouse/logips2pp.c
index d3ddea26b8ca..9df74b72e6c4 100644
--- a/drivers/input/mouse/logips2pp.c
+++ b/drivers/input/mouse/logips2pp.c
@@ -200,6 +200,7 @@ static void ps2pp_disconnect(struct psmouse *psmouse)
 static const struct ps2pp_info *get_model_info(unsigned char model)
 {
         static const struct ps2pp_info ps2pp_list[] = {
+                {  1,   0,                      0 },    /* Simple 2-button mouse */
                 { 12,   0,                      PS2PP_SIDE_BTN},
                 { 13,   0,                      0 },
                 { 15,   PS2PP_KIND_MX,                                  /* MX1000 */
@@ -338,12 +339,12 @@ int ps2pp_init(struct psmouse *psmouse, int set_properties)
         param[1] = 0;
         ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
 
-        if (!param[1])
-                return -1;
-
         model = ((param[0] >> 4) & 0x07) | ((param[0] << 3) & 0x78);
         buttons = param[1];
 
+        if (!model || !buttons)
+                return -1;
+
         if ((model_info = get_model_info(model)) != NULL) {
 
 /*