Input: gamecon - handle errors from input_register_device()

Also gc_remove shouldn't be marked __exit as it is also called from
__init code.

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

diff --git a/drivers/input/joystick/gamecon.c b/drivers/input/joystick/gamecon.c
index d975745..900587a 100644 (file)
--- a/drivers/input/joystick/gamecon.c
+++ b/drivers/input/joystick/gamecon.c
@@ -706,9 +706,11 @@ static struct gc __init *gc_probe(int parport, int *pads, int n_pads)
                sprintf(gc->phys[i], "%s/input%d", gc->pd->port->name, i);
                err = gc_setup_pad(gc, i, pads[i]);
                if (err)
-                       goto err_free_devs;
+                       goto err_unreg_devs;
 
-               input_register_device(gc->dev[i]);
+               err = input_register_device(gc->dev[i]);
+               if (err)
+                       goto err_free_dev;
        }
 
        if (!gc->pads[0]) {
@@ -720,9 +722,12 @@ static struct gc __init *gc_probe(int parport, int *pads, int n_pads)
        parport_put_port(pp);
        return gc;
 
- err_free_devs:
+ err_free_dev:
+       input_free_device(gc->dev[i]);
+ err_unreg_devs:
        while (--i >= 0)
-               input_unregister_device(gc->dev[i]);
+               if (gc->dev[i])
+                       input_unregister_device(gc->dev[i]);
  err_free_gc:
        kfree(gc);
  err_unreg_pardev:
@@ -733,7 +738,7 @@ static struct gc __init *gc_probe(int parport, int *pads, int n_pads)
        return ERR_PTR(err);
 }
 
-static void __exit gc_remove(struct gc *gc)
+static void gc_remove(struct gc *gc)
 {
        int i;
 
@@ -771,7 +776,8 @@ static int __init gc_init(void)
 
        if (err) {
                while (--i >= 0)
-                       gc_remove(gc_base[i]);
+                       if (gc_base[i])
+                               gc_remove(gc_base[i]);
                return err;
        }