Input: handle errors from input_register_device in drivers/macintosh

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

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/macintosh/mac_hid.c b/drivers/macintosh/mac_hid.c
index 6b129eef7987..ee6b4ca69130 100644
--- a/drivers/macintosh/mac_hid.c
+++ b/drivers/macintosh/mac_hid.c
@@ -106,6 +106,8 @@ EXPORT_SYMBOL(mac_hid_mouse_emulate_buttons);
 
 static int emumousebtn_input_register(void)
 {
+        int ret;
+
         emumousebtn = input_allocate_device();
         if (!emumousebtn)
                 return -ENOMEM;
@@ -120,9 +122,11 @@ static int emumousebtn_input_register(void)
         emumousebtn->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
         emumousebtn->relbit[0] = BIT(REL_X) | BIT(REL_Y);
 
-        input_register_device(emumousebtn);
+        ret = input_register_device(emumousebtn);
+        if (ret)
+                input_free_device(emumousebtn);
 
-        return 0;
+        return ret;
 }
 
 int __init mac_hid_init(void)