Input: make input_register_handler() return error codes

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

1 files changed, 17 insertions, 4 deletions

diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index cd02f1b62b66..a22a74a2a3dc 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -738,7 +738,12 @@ static int psaux_registered;
 
 static int __init mousedev_init(void)
 {
-        input_register_handler(&mousedev_handler);
+        struct class_device *cdev;
+        int error;
+
+        error = input_register_handler(&mousedev_handler);
+        if (error)
+                return error;
 
         memset(&mousedev_mix, 0, sizeof(struct mousedev));
         INIT_LIST_HEAD(&mousedev_mix.list);
@@ -747,12 +752,20 @@ static int __init mousedev_init(void)
         mousedev_mix.exist = 1;
         mousedev_mix.minor = MOUSEDEV_MIX;
 
-        class_device_create(&input_class, NULL,
+        cdev = class_device_create(&input_class, NULL,
                         MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + MOUSEDEV_MIX), NULL, "mice");
+        if (IS_ERR(cdev)) {
+                input_unregister_handler(&mousedev_handler);
+                return PTR_ERR(cdev);
+        }
 
 #ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
-        if (!(psaux_registered = !misc_register(&psaux_mouse)))
-                printk(KERN_WARNING "mice: could not misc_register the device\n");
+        error = misc_register(&psaux_mouse);
+        if (error)
+                printk(KERN_WARNING "mice: could not register psaux device, "
+                        "error: %d\n", error);
+        else
+                psaux_registered = 1;
 #endif
 
         printk(KERN_INFO "mice: PS/2 mouse device common for all mice\n");