From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
To: jikos@kernel.org, benjamin.tissoires@redhat.com,
dinghao.liu@zju.edu.cn, neko@nya.ai
Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org,
Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH] HID: elan: Fix some error handling path
Date: Sun, 29 Nov 2020 09:22:15 +0100 [thread overview]
Message-ID: <20201129082215.1453257-1-christophe.jaillet@wanadoo.fr> (raw)
'input' is a managed resource allocated earlier in the function by:
input = devm_input_allocate_device(&hdev->dev);
There is no need to explicitly free it. This would lead to a double
reference decrement.
Fixes: b7429ea53d6c ("HID: elan: Fix memleak in elan_input_configured")
Fixes: 9a6a4193d65b ("HID: Add driver for USB ELAN Touchpad")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/hid/hid-elan.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/hid/hid-elan.c b/drivers/hid/hid-elan.c
index dae193749d44..8587f9d2fffb 100644
--- a/drivers/hid/hid-elan.c
+++ b/drivers/hid/hid-elan.c
@@ -188,7 +188,6 @@ 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;
}
@@ -200,7 +199,6 @@ static int elan_input_configured(struct hid_device *hdev, struct hid_input *hi)
hid_err(hdev, "Failed to register elan input device: %d\n",
ret);
input_mt_destroy_slots(input);
- input_free_device(input);
return ret;
}
--
2.27.0
reply other threads:[~2020-11-29 8:24 UTC|newest]
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