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crypto: caam - check return code of dma_set_mask_and_coherent()

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Setting the dma mask could fail, thus make sure it succeeds
before going further.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Horia Geantă 2017-02-10 14:07:15 +02:00 committed by Herbert Xu
parent 78fd0fff7f
commit b3b5fce736
2 changed files with 24 additions and 10 deletions
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15
drivers/crypto/caam/ctrl.c
View file

@ -586,13 +586,18 @@ static int caam_probe(struct platform_device *pdev)
JRSTART_JR1_START | JRSTART_JR2_START |
JRSTART_JR3_START);
if (sizeof(dma_addr_t) == sizeof(u64))
if (sizeof(dma_addr_t) == sizeof(u64)) {
if (of_device_is_compatible(nprop, "fsl,sec-v5.0"))
dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40));
ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40));
else
dma_set_mask_and_coherent(dev, DMA_BIT_MASK(36));
else
dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(36));
} else {
ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
}
if (ret) {
dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n", ret);
goto iounmap_ctrl;
}
/*
* Detect and enable JobRs

19
drivers/crypto/caam/jr.c
View file

@ -498,13 +498,22 @@ static int caam_jr_probe(struct platform_device *pdev)
jrpriv->rregs = (struct caam_job_ring __iomem __force *)ctrl;
if (sizeof(dma_addr_t) == sizeof(u64))
if (sizeof(dma_addr_t) == sizeof(u64)) {
if (of_device_is_compatible(nprop, "fsl,sec-v5.0-job-ring"))
dma_set_mask_and_coherent(jrdev, DMA_BIT_MASK(40));
error = dma_set_mask_and_coherent(jrdev,
DMA_BIT_MASK(40));
else
dma_set_mask_and_coherent(jrdev, DMA_BIT_MASK(36));
else
dma_set_mask_and_coherent(jrdev, DMA_BIT_MASK(32));
error = dma_set_mask_and_coherent(jrdev,
DMA_BIT_MASK(36));
} else {
error = dma_set_mask_and_coherent(jrdev, DMA_BIT_MASK(32));
}
if (error) {
dev_err(jrdev, "dma_set_mask_and_coherent failed (%d)\n",
error);
iounmap(ctrl);
return error;
}
/* Identify the interrupt */
jrpriv->irq = irq_of_parse_and_map(nprop, 0);