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[2/3] HID: wacom: fix memory leak on sysfs attribute creation failure

Message ID 20250430173911.84705-3-qasdev00@gmail.com
State New
Headers show
Series HID: wacom: fix resource cleanup issues | expand

Commit Message

Qasim Ijaz April 30, 2025, 5:39 p.m. UTC 
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@vger.kernel.org
Signed-off-by: Qasim Ijaz <qasdev00@gmail.com>
---
 drivers/hid/wacom_sys.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

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;
 	}