tree a5fab4b75b718e025212df955f09a80bbb8eae89
parent 42270dce9d78acbaa5b9ca4fd4e82d251a8d099b
author Dick Kennedy <dick.kennedy@broadcom.com> 1506731681 -0700
committer Martin K. Petersen <martin.petersen@oracle.com> 1506998799 -0400

scsi: lpfc: Fix crash in lpfc_nvme_fcp_io_submit during LIP

The driver is seeing a NULL pointer in lpfc_nvme_fcp_io_submit.  This
was ultimately due to a transport AER being sent on a terminated
controller, thus some of the values were not set. In case we're in a
system without a corrected transport and in case a race condition occurs
where we enter the routine as the teardown is happening in a separate
thread, validate the parameters before starting the io.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>