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Message-Id: <20250430173911.84705-3-qasdev00@gmail.com>
Date: Wed, 30 Apr 2025 18:39:10 +0100
From: Qasim Ijaz <qasdev00@...il.com>
To: ping.cheng@...om.com,
jason.gerecke@...om.com,
jikos@...nel.org,
bentiss@...nel.org,
linux-input@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Qasim Ijaz <qasdev00@...il.com>,
stable@...r.kernel.org
Subject: [PATCH 2/3] HID: wacom: fix memory leak on sysfs attribute creation failure
When sysfs_create_files() fails during wacom_initialize_remotes() the
fifo buffer is not freed leading to a memory leak.
Fix this by calling kfifo_free() before returning.
Fixes: 83e6b40e2de6 ("HID: wacom: EKR: have the wacom resources dynamically allocated")
Cc: stable@...r.kernel.org
Signed-off-by: Qasim Ijaz <qasdev00@...il.com>
---
drivers/hid/wacom_sys.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index ec5282bc69d6..58cbd43a37e9 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -2058,6 +2058,7 @@ static int wacom_initialize_remotes(struct wacom *wacom)
if (error) {
hid_err(wacom->hdev,
"cannot create sysfs group err: %d\n", error);
+ kfifo_free(&remote->remote_fifo);
return error;
}
--
2.39.5
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