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HID: wacom: fix memory leak on sysfs attribute creation failure

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commit 1a19ae437ca5d5c7d9ec2678946fb339b1c706bf upstream.

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: 83e6b40e2d ("HID: wacom: EKR: have the wacom resources dynamically allocated")
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Cc: stable@vger.kernel.org
Signed-off-by: Qasim Ijaz <qasdev00@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Qasim Ijaz
2025-06-06 19:49:58 +01:00
committed by Greg Kroah-Hartman
parent 33acbeeb5a
commit f531651c39
1 changed files with 1 additions and 0 deletions
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drivers/hid/wacom_sys.c
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@@ -2022,6 +2022,7 @@ static int wacom_initialize_remotes(struct wacom *wacom)
if (error) { if (error) {
hid_err(wacom->hdev, hid_err(wacom->hdev,
"cannot create sysfs group err: %d\n", error); "cannot create sysfs group err: %d\n", error);
kfifo_free(&remote->remote_fifo);
return error; return error;
} }