diff options
| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2023-01-28 19:08:32 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-02-08 19:12:25 -0500 |
| commit | 32fe45274edb5926abc0fac7263d9f889d02d9cf (patch) | |
| tree | 9319a88178f2beb436ced19aa01059c5e3c98fa9 /drivers/scsi/aic94xx | |
| parent | ead821268c14a8f87b5cb1079aed10bb16373fe8 (diff) | |
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: 2908d778ab3e ("[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>
Diffstat (limited to 'drivers/scsi/aic94xx')
| -rw-r--r-- | drivers/scsi/aic94xx/aic94xx_task.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/aic94xx/aic94xx_task.c b/drivers/scsi/aic94xx/aic94xx_task.c index ed119a3f6f2e..7f0208300110 100644 --- a/drivers/scsi/aic94xx/aic94xx_task.c +++ b/drivers/scsi/aic94xx/aic94xx_task.c @@ -50,6 +50,9 @@ static int asd_map_scatterlist(struct sas_task *task, dma_addr_t dma = dma_map_single(&asd_ha->pcidev->dev, p, task->total_xfer_len, task->data_dir); + if (dma_mapping_error(&asd_ha->pcidev->dev, dma)) + return -ENOMEM; + sg_arr[0].bus_addr = cpu_to_le64((u64)dma); sg_arr[0].size = cpu_to_le32(task->total_xfer_len); sg_arr[0].flags |= ASD_SG_EL_LIST_EOL; |