diff options
| author | Quinn Tran <quinn.tran@cavium.com> | 2019-01-24 23:23:44 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-02-05 21:41:16 -0500 |
| commit | 9ecd6564d1547d64fec464fdae75c82794c94c51 (patch) | |
| tree | f163a4b690b6f33ff2251edcb27531823a097d47 | |
| parent | 51fd6e6351a62da87a7eb7b059d34056d73e68e5 (diff) | |
scsi: qla2xxx: fix fcport null pointer access.
This patch allocates DMA memory to prevent NULL pointer access for ct_sns
request while sending switch commands.
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_init.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 58b4bfe01202..aa72e8316533 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -4755,6 +4755,16 @@ qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags) if (!fcport) return NULL; + fcport->ct_desc.ct_sns = dma_alloc_coherent(&vha->hw->pdev->dev, + sizeof(struct ct_sns_pkt), &fcport->ct_desc.ct_sns_dma, + flags); + if (!fcport->ct_desc.ct_sns) { + ql_log(ql_log_warn, vha, 0xd049, + "Failed to allocate ct_sns request.\n"); + kfree(fcport); + return NULL; + } + /* Setup fcport template structure. */ fcport->vha = vha; fcport->port_type = FCT_UNKNOWN; @@ -4763,13 +4773,11 @@ qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags) fcport->supported_classes = FC_COS_UNSPECIFIED; fcport->fp_speed = PORT_SPEED_UNKNOWN; - fcport->ct_desc.ct_sns = dma_alloc_coherent(&vha->hw->pdev->dev, - sizeof(struct ct_sns_pkt), &fcport->ct_desc.ct_sns_dma, - flags); fcport->disc_state = DSC_DELETED; fcport->fw_login_state = DSC_LS_PORT_UNAVAIL; fcport->deleted = QLA_SESS_DELETED; fcport->login_retry = vha->hw->login_retry_count; + fcport->chip_reset = vha->hw->base_qpair->chip_reset; fcport->logout_on_delete = 1; if (!fcport->ct_desc.ct_sns) { @@ -4778,6 +4786,7 @@ qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags) kfree(fcport); fcport = NULL; } + INIT_WORK(&fcport->del_work, qla24xx_delete_sess_fn); INIT_WORK(&fcport->reg_work, qla_register_fcport_fn); INIT_LIST_HEAD(&fcport->gnl_entry); |