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scsi: aic94xx: Add missing check for dma_map_single()
Add check for dma_map_single() and return error if it fails in order to
avoid invalid DMA address.
Fixes: 2908d778ab
("[SCSI] aic94xx: new driver")
Link: https://lore.kernel.org/r/20230128110832.6792-1-jiasheng@iscas.ac.cn
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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@ -50,6 +50,9 @@ static int asd_map_scatterlist(struct sas_task *task,
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dma_addr_t dma = dma_map_single(&asd_ha->pcidev->dev, p,
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task->total_xfer_len,
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task->data_dir);
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if (dma_mapping_error(&asd_ha->pcidev->dev, dma))
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return -ENOMEM;
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sg_arr[0].bus_addr = cpu_to_le64((u64)dma);
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sg_arr[0].size = cpu_to_le32(task->total_xfer_len);
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sg_arr[0].flags |= ASD_SG_EL_LIST_EOL;
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