diff options
| author | Christoph Hellwig <hch@lst.de> | 2024-07-19 06:07:38 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2024-08-29 07:22:49 +0300 |
| commit | 334304ac2baca7f3e821c47cf5129d90e7a6b1e6 (patch) | |
| tree | 97bf1f87e108962f636331aa4f9ac4b0a5627a96 /drivers/dma | |
| parent | 560a861ab4174b42240157ab5cebe36b8c7bc418 (diff) | |
dma-mapping: don't return errors from dma_set_max_seg_size
A NULL dev->dma_parms indicates either a bus that is not DMA capable or
grave bug in the implementation of the bus code.
There isn't much the driver can do in terms of error handling for either
case, so just warn and continue as DMA operations will fail anyway.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # For MMC
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/idma64.c | 4 | ||||
| -rw-r--r-- | drivers/dma/pl330.c | 5 | ||||
| -rw-r--r-- | drivers/dma/qcom/bam_dma.c | 6 | ||||
| -rw-r--r-- | drivers/dma/sh/rcar-dmac.c | 4 | ||||
| -rw-r--r-- | drivers/dma/ste_dma40.c | 6 |
5 files changed, 5 insertions, 20 deletions
diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c index e3505e56784b..1398814d8fbb 100644 --- a/drivers/dma/idma64.c +++ b/drivers/dma/idma64.c @@ -598,9 +598,7 @@ static int idma64_probe(struct idma64_chip *chip) idma64->dma.dev = chip->sysdev; - ret = dma_set_max_seg_size(idma64->dma.dev, IDMA64C_CTLH_BLOCK_TS_MASK); - if (ret) - return ret; + dma_set_max_seg_size(idma64->dma.dev, IDMA64C_CTLH_BLOCK_TS_MASK); ret = dma_async_device_register(&idma64->dma); if (ret) diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 60c4de8dac1d..82a9fe88ad54 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -3163,10 +3163,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) * This is the limit for transfers with a buswidth of 1, larger * buswidths will have larger limits. */ - ret = dma_set_max_seg_size(&adev->dev, 1900800); - if (ret) - dev_err(&adev->dev, "unable to set the seg size\n"); - + dma_set_max_seg_size(&adev->dev, 1900800); init_pl330_debugfs(pl330); dev_info(&adev->dev, diff --git a/drivers/dma/qcom/bam_dma.c b/drivers/dma/qcom/bam_dma.c index 5e7d332731e0..368ffaa40037 100644 --- a/drivers/dma/qcom/bam_dma.c +++ b/drivers/dma/qcom/bam_dma.c @@ -1325,11 +1325,7 @@ static int bam_dma_probe(struct platform_device *pdev) /* set max dma segment size */ bdev->common.dev = bdev->dev; - ret = dma_set_max_seg_size(bdev->common.dev, BAM_FIFO_SIZE); - if (ret) { - dev_err(bdev->dev, "cannot set maximum segment size\n"); - goto err_bam_channel_exit; - } + dma_set_max_seg_size(bdev->common.dev, BAM_FIFO_SIZE); platform_set_drvdata(pdev, bdev); diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c index 40482cb73d79..1094a2f82164 100644 --- a/drivers/dma/sh/rcar-dmac.c +++ b/drivers/dma/sh/rcar-dmac.c @@ -1868,9 +1868,7 @@ static int rcar_dmac_probe(struct platform_device *pdev) dmac->dev = &pdev->dev; platform_set_drvdata(pdev, dmac); - ret = dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK); - if (ret) - return ret; + dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK); ret = dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40)); if (ret) diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 2c489299148e..d52e1685aed5 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -3632,11 +3632,7 @@ static int __init d40_probe(struct platform_device *pdev) if (ret) goto destroy_cache; - ret = dma_set_max_seg_size(base->dev, STEDMA40_MAX_SEG_SIZE); - if (ret) { - d40_err(dev, "Failed to set dma max seg size\n"); - goto destroy_cache; - } + dma_set_max_seg_size(base->dev, STEDMA40_MAX_SEG_SIZE); d40_hw_init(base); |