As stated in [1], dma_set_mask() with a 64-bit mask never fails if dev->dma_mask is non-NULL. So, if it fails, the 32 bits case will also fail for the same reason. Moreover, dma_set_mask_and_coherent() returns 0 or -EIO, so the return code of the function can be used directly. There is no need to 'rc = -EIO' explicitly. Simplify code and remove some dead code accordingly. [1]: https://lkml.org/lkml/2021/6/7/398 Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> --- drivers/net/ethernet/agere/et131x.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/agere/et131x.c b/drivers/net/ethernet/agere/et131x.c index f4edc616388c..537e6a85e18d 100644 --- a/drivers/net/ethernet/agere/et131x.c +++ b/drivers/net/ethernet/agere/et131x.c @@ -3914,10 +3914,9 @@ static int et131x_pci_setup(struct pci_dev *pdev, pci_set_master(pdev); /* Check the DMA addressing support of this device */ - if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) && - dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) { + rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); + if (rc) { dev_err(&pdev->dev, "No usable DMA addressing method\n"); - rc = -EIO; goto err_release_res; } -- 2.32.0
