On Sun, Dec 21, 2025 at 08:05:38PM +0800, Haoxiang Li wrote:

If rio_add_device() fails, call rio_free_net() to unregister the net device registered by rio_add_net().

Fixes: e8de370188d0 ("rapidio: add mport char device driver") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li lihaoxiang@isrc.iscas.ac.cn

---

drivers/rapidio/devices/rio_mport_cdev.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/devices/rio_mport_cdev.c index 995cfeca972b..4a804b4ad6f7 100644 --- a/drivers/rapidio/devices/rio_mport_cdev.c +++ b/drivers/rapidio/devices/rio_mport_cdev.c @@ -1789,6 +1789,7 @@ static int rio_mport_add_riodev(struct mport_cdev_priv *priv, err = rio_add_device(rdev); if (err) { put_device(&rdev->dev);

• rio_free_net(net);
  

  return err;

Are you sure this is right? You aren't checking that rio_add_net() was actually called. How was this tested? How was this found? What tool was used to find it?

thanks,

greg k-h