Input: grip - handle errors from input_register_device()

Also set .owner in driver structure so we'll have a link between
module and driver in sysfs.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/input/joystick/grip.c b/drivers/input/joystick/grip.c
index 330c6717c149..20cb98ac2d79 100644
--- a/drivers/input/joystick/grip.c
+++ b/drivers/input/joystick/grip.c
@@ -384,12 +384,15 @@ static int grip_connect(struct gameport *gameport, struct gameport_driver *drv)
                         if (t > 0)
                                 set_bit(t, input_dev->keybit);
 
-                input_register_device(grip->dev[i]);
+                err = input_register_device(grip->dev[i]);
+                if (err)
+                        goto fail4;
         }
 
         return 0;
 
- fail3: for (i = 0; i < 2; i++)
+ fail4: input_free_device(grip->dev[i]);
+ fail3: while (--i >= 0)
                 if (grip->dev[i])
                         input_unregister_device(grip->dev[i]);
  fail2: gameport_close(gameport);
@@ -414,6 +417,7 @@ static void grip_disconnect(struct gameport *gameport)
 static struct gameport_driver grip_drv = {
         .driver         = {
                 .name   = "grip",
+                .owner  = THIS_MODULE,
         },
         .description    = DRIVER_DESC,
         .connect        = grip_connect,