diff options
| author | Lionel Debieve <lionel.debieve@st.com> | 2018-01-29 15:28:09 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-02-15 23:26:55 +0800 |
| commit | a3d98b9028395405509bc9e4cbe4b886ebae3c41 (patch) | |
| tree | 381b3c886c618dc34de8b2a492b5de58718fc95c /drivers/crypto/stm32 | |
| parent | d3e41b50b46b5ee26793c9c28ccc2d3e45f4f9cc (diff) | |
crypto: stm32/hash - avoid error if maxburst not defined
dma-maxburst is an optional value and must not return
error in case of dma not used (or max-burst not defined).
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/stm32')
| -rw-r--r-- | drivers/crypto/stm32/stm32-hash.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c index 89b0c2490d80..37815aa7f5de 100644 --- a/drivers/crypto/stm32/stm32-hash.c +++ b/drivers/crypto/stm32/stm32-hash.c @@ -1413,18 +1413,19 @@ MODULE_DEVICE_TABLE(of, stm32_hash_of_match); static int stm32_hash_get_of_match(struct stm32_hash_dev *hdev, struct device *dev) { - int err; - hdev->pdata = of_device_get_match_data(dev); if (!hdev->pdata) { dev_err(dev, "no compatible OF match\n"); return -EINVAL; } - err = of_property_read_u32(dev->of_node, "dma-maxburst", - &hdev->dma_maxburst); + if (of_property_read_u32(dev->of_node, "dma-maxburst", + &hdev->dma_maxburst)) { + dev_info(dev, "dma-maxburst not specified, using 0\n"); + hdev->dma_maxburst = 0; + } - return err; + return 0; } static int stm32_hash_probe(struct platform_device *pdev) |