From: Dinghao Liu dinghao.liu@zju.edu.cn
[ Upstream commit b7429ea53d6c0936a0f10a5d64164f0aea440143 ]
When input_mt_init_slots() fails, input should be freed to prevent memleak. When input_register_device() fails, we should call input_mt_destroy_slots() to free memory allocated by input_mt_init_slots().
Signed-off-by: Dinghao Liu dinghao.liu@zju.edu.cn Signed-off-by: Jiri Kosina jkosina@suse.cz Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hid/hid-elan.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/hid/hid-elan.c b/drivers/hid/hid-elan.c index 45c4f888b7c4e..dae193749d443 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; }
@@ -198,6 +199,7 @@ static int elan_input_configured(struct hid_device *hdev, struct hid_input *hi) if (ret) { hid_err(hdev, "Failed to register elan input device: %d\n", ret); + input_mt_destroy_slots(input); input_free_device(input); return ret; }