Hello, The Coccinelle semantic patch "deref_null.cocci" pointed out a potential problem in the implementation of the function "dtsec_config" (lines 1434-1439): https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/tree/drivers/net/ethernet/freescale/fman/fman_dtsec.c?id=e5a03bfd873c29eb786655ef2e95e53ed242b404#n1434 … dtsec->tbiphy = of_phy_find_device(params->internal_phy_node); if (!dtsec->tbiphy) { pr_err("of_phy_find_device (TBI PHY) failed\n"); put_device(&dtsec->tbiphy->mdio.dev); goto err_dtsec_drv_param; } … If the pointer "dtsec->tbiphy" is NULL, then it will especially matter if the shown address computation will succeed. Should the call of the function "put_device" be removed, or was another argument intended? Regards, Markus -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html