[PATCH] HID: elan: Fix memleak in elan_input_configured

[Dinghao Liu]

When input_mt_init_slots() fails, input should be
freed to prevent memleak.

Fixes: 9a6a4193d65b8 ("HID: Add driver for USB ELAN Touchpad")
Signed-off-by: Dinghao Liu <dinghao....@zju.edu.cn>
---
 drivers/hid/hid-elan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hid/hid-elan.c b/drivers/hid/hid-elan.c
index 45c4f888b7c4..858442004258 100644
--- a/drivers/hid/hid-elan.c
+++ b/drivers/hid/hid-elan.c
@@ -188,6 +188,7 @@ static int elan_input_configured(struct hid_device *hdev, 
struct hid_input *hi)
        ret = input_mt_init_slots(input, ELAN_MAX_FINGERS, INPUT_MT_POINTER);
        if (ret) {
                hid_err(hdev, "Failed to init elan MT slots: %d\n", ret);
+               input_free_device(input);
                return ret;
        }
 
-- 
2.17.1