Oops. There are a couple other related warnings as well. drivers/net/wireless/intel/iwlwifi/fw/acpi.c:166 iwl_acpi_get_mcc() warn: passing a valid pointer to 'PTR_ERR' drivers/net/wireless/intel/iwlwifi/fw/acpi.c:228 iwl_acpi_get_eckv() warn: passing a valid pointer to 'PTR_ERR' drivers/net/wireless/intel/iwlwifi/mvm/fw.c:696 iwl_mvm_sar_get_wrds_table() warn: passing a valid pointer to 'PTR_ERR' drivers/net/wireless/intel/iwlwifi/mvm/fw.c:733 iwl_mvm_sar_get_ewrd_table() warn: passing a valid pointer to 'PTR_ERR' drivers/net/wireless/intel/iwlwifi/mvm/fw.c:793 iwl_mvm_sar_get_wgds_table() warn: passing a valid pointer to 'PTR_ERR' regards, dan carpenter