diff options
| author | Horia Geantă <horia.geanta@nxp.com> | 2017-02-10 14:07:15 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-02-15 13:23:37 +0800 |
| commit | b3b5fce7364b674b66c58adea1dd2a2f85b61dd7 (patch) | |
| tree | b8ccc53f14e2cbe445de3773d9607ed71eb2a640 /drivers/crypto/caam | |
| parent | 78fd0fff7fbb55b352bd7058bf51caa46dd3a0f1 (diff) | |
| download | linux-b3b5fce7364b674b66c58adea1dd2a2f85b61dd7.tar.bz2 | |
crypto: caam - check return code of dma_set_mask_and_coherent()
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>
Diffstat (limited to 'drivers/crypto/caam')
| -rw-r--r-- | drivers/crypto/caam/ctrl.c | 15 | ||||
| -rw-r--r-- | drivers/crypto/caam/jr.c | 19 |
2 files changed, 24 insertions, 10 deletions
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c index 8957ec952212..f825e3765a4b 100644 --- a/drivers/crypto/caam/ctrl.c +++ b/drivers/crypto/caam/ctrl.c @@ -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 diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c index c8604dfadbf5..27631000b9f8 100644 --- a/drivers/crypto/caam/jr.c +++ b/drivers/crypto/caam/jr.c @@ -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); |