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: 83e6b40 ("HID: wacom: EKR: have the wacom resources dynamically allocated")
Reviewed-by: Ping Cheng <[email protected]>
Cc: [email protected]
Signed-off-by: Qasim Ijaz <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

Author: qasim-ijaz

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;
 	}