xtensa: ISS: add comment about etherdev freeing

iss_net_configure explicitly frees etherdev in all error return paths
except one where register_netdevice fails. In that remaining error
return path the etherdev is freed by the iss_net_pdev_release callback
triggered by the platform_device_unregister call. Add a comment stating
that.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c
index 9ac46ab3a296cb599ab193b60ba0dae62c4c1cd7..7b97e6ab85a42124f4b1a399eef2b442293e8b92 100644 (file)
--- a/arch/xtensa/platforms/iss/network.c
+++ b/arch/xtensa/platforms/iss/network.c
@@ -540,6 +540,7 @@ static void iss_net_configure(int index, char *init)
                rtnl_unlock();
                pr_err("%s: error registering net device!\n", dev->name);
                platform_device_unregister(&lp->pdev);
+               /* dev is freed by the iss_net_pdev_release callback */
                return;
        }
        rtnl_unlock();