[PATCH] [v2] HID: elan: Fix memleak in elan_input_configured
flat view
STALE2235d
From: Dinghao Liu <hidden>
Date: 2020-08-31 09:07:01
Also in:
lkml
Subsystem:
hid core layer, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Linus Torvalds
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 <redacted>
---
Changelog:
v2: - Add input_mt_destroy_slots() on failure of
input_register_device().
---
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 45c4f888b7c4..dae193749d44 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; }
--
2.17.1