diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_mbx.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 39544deab576..59ec5605930b 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -6579,6 +6579,7 @@ qla26xx_dport_diagnostics(scsi_qla_host_t *vha, mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; dma_addr_t dd_dma; + void *dd; if (!IS_QLA83XX(vha->hw) && !IS_QLA27XX(vha->hw) && !IS_QLA28XX(vha->hw) && !IS_QLA29XX(vha->hw)) @@ -6587,15 +6588,12 @@ qla26xx_dport_diagnostics(scsi_qla_host_t *vha, ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x119f, "Entered %s.\n", __func__); - dd_dma = dma_map_single(&vha->hw->pdev->dev, - dd_buf, size, DMA_FROM_DEVICE); - if (dma_mapping_error(&vha->hw->pdev->dev, dd_dma)) { - ql_log(ql_log_warn, vha, 0x1194, "Failed to map dma buffer.\n"); + dd = dma_alloc_coherent(&vha->hw->pdev->dev, size, &dd_dma, GFP_KERNEL); + if (!dd) { + ql_log(ql_log_warn, vha, 0x1194, "Failed to allocate dma buffer.\n"); return QLA_MEMORY_ALLOC_FAILED; } - memset(dd_buf, 0, size); - mcp->mb[0] = MBC_DPORT_DIAGNOSTICS; mcp->mb[1] = options; mcp->mb[2] = MSW(LSD(dd_dma)); @@ -6617,8 +6615,9 @@ qla26xx_dport_diagnostics(scsi_qla_host_t *vha, "Done %s.\n", __func__); } - dma_unmap_single(&vha->hw->pdev->dev, dd_dma, - size, DMA_FROM_DEVICE); + memcpy(dd_buf, dd, size); + + dma_free_coherent(&vha->hw->pdev->dev, size, dd, dd_dma); return rval; } |