diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/dw-edma/dw-edma-pcie.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/dma/dw-edma/dw-edma-pcie.c b/drivers/dma/dw-edma/dw-edma-pcie.c index fa66e0380e6d..44f6e09bdb53 100644 --- a/drivers/dma/dw-edma/dw-edma-pcie.c +++ b/drivers/dma/dw-edma/dw-edma-pcie.c @@ -240,6 +240,9 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev, dw->rd_ch_cnt = vsec_data.rd_ch_cnt; dw->rg_region.vaddr = pcim_iomap_table(pdev)[vsec_data.rg.bar]; + if (!dw->rg_region.vaddr) + return -ENOMEM; + dw->rg_region.vaddr += vsec_data.rg.off; dw->rg_region.paddr = pdev->resource[vsec_data.rg.bar].start; dw->rg_region.paddr += vsec_data.rg.off; @@ -252,12 +255,18 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev, struct dw_edma_block *dt_block = &vsec_data.dt_wr[i]; ll_region->vaddr = pcim_iomap_table(pdev)[ll_block->bar]; + if (!ll_region->vaddr) + return -ENOMEM; + ll_region->vaddr += ll_block->off; ll_region->paddr = pdev->resource[ll_block->bar].start; ll_region->paddr += ll_block->off; ll_region->sz = ll_block->sz; dt_region->vaddr = pcim_iomap_table(pdev)[dt_block->bar]; + if (!dt_region->vaddr) + return -ENOMEM; + dt_region->vaddr += dt_block->off; dt_region->paddr = pdev->resource[dt_block->bar].start; dt_region->paddr += dt_block->off; @@ -271,12 +280,18 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev, struct dw_edma_block *dt_block = &vsec_data.dt_rd[i]; ll_region->vaddr = pcim_iomap_table(pdev)[ll_block->bar]; + if (!ll_region->vaddr) + return -ENOMEM; + ll_region->vaddr += ll_block->off; ll_region->paddr = pdev->resource[ll_block->bar].start; ll_region->paddr += ll_block->off; ll_region->sz = ll_block->sz; dt_region->vaddr = pcim_iomap_table(pdev)[dt_block->bar]; + if (!dt_region->vaddr) + return -ENOMEM; + dt_region->vaddr += dt_block->off; dt_region->paddr = pdev->resource[dt_block->bar].start; dt_region->paddr += dt_block->off; |