Commit ad2bf165 authored by Joe Lawrence's avatar Joe Lawrence Committed by Martin K. Petersen

mpt3sas: avoid mpt3sas_transport_port_add NULL parent_dev

If _scsih_sas_host_add's call to mpt3sas_config_get_sas_iounit_pg0
fails, ioc->sas_hba.parent_dev may be left uninitialized.  A later
device probe could invoke mpt3sas_transport_port_add which will call
sas_port_alloc_num [scsi_transport_sas] with a NULL parent_dev pointer.
Signed-off-by: default avatarJoe Lawrence <>
Acked-by: default avatarSreekanth Reddy <>
Signed-off-by: default avatarMartin K. Petersen <>
parent 87aa95d4
......@@ -705,6 +705,11 @@ mpt3sas_transport_port_add(struct MPT3SAS_ADAPTER *ioc, u16 handle,
goto out_fail;
if (!sas_node->parent_dev) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out_fail;
port = sas_port_alloc_num(sas_node->parent_dev);
if ((sas_port_add(port))) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
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