Input: db9 - handle errors from input_register_device()

Also db9_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/db9.c b/drivers/input/joystick/db9.c
index 98479b8..dcffc34 100644 (file)
--- a/drivers/input/joystick/db9.c
+++ b/drivers/input/joystick/db9.c
@@ -616,7 +616,7 @@ static struct db9 __init *db9_probe(int parport, int mode)
                if (!input_dev) {
                        printk(KERN_ERR "db9.c: Not enough memory for input device\n");
                        err = -ENOMEM;
-                       goto err_free_devs;
+                       goto err_unreg_devs;
                }
 
                sprintf(db9->phys[i], "%s/input%d", db9->pd->port->name, i);
@@ -642,13 +642,17 @@ static struct db9 __init *db9_probe(int parport, int mode)
                                input_set_abs_params(input_dev, db9_abs[j], 1, 255, 0, 0);
                }
 
-               input_register_device(input_dev);
+               err = input_register_device(input_dev);
+               if (err)
+                       goto err_free_dev;
        }
 
        parport_put_port(pp);
        return db9;
 
- err_free_devs:
+ err_free_dev:
+       input_free_device(db9->dev[i]);
+ err_unreg_devs:
        while (--i >= 0)
                input_unregister_device(db9->dev[i]);
        kfree(db9);
@@ -660,7 +664,7 @@ static struct db9 __init *db9_probe(int parport, int mode)
        return ERR_PTR(err);
 }
 
-static void __exit db9_remove(struct db9 *db9)
+static void db9_remove(struct db9 *db9)
 {
        int i;
 
@@ -698,7 +702,8 @@ static int __init db9_init(void)
 
        if (err) {
                while (--i >= 0)
-                       db9_remove(db9_base[i]);
+                       if (db9_base[i])
+                               db9_remove(db9_base[i]);
                return err;
        }