From: Lionel Debieve Subject: [PATCH 1/3] crypto: stm32/hash: avoid error if maxburst not defined Date: Mon, 29 Jan 2018 15:28:09 +0100 Message-ID: <20180129142811.13273-2-lionel.Debieve@st.com> References: <20180129142811.13273-1-lionel.Debieve@st.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Ludovic Barre , Lionel Debieve , Benjamin Gaignard , Fabien Dessenne To: Herbert Xu , "David S . Miller" , Maxime Coquelin , Alexandre Torgue , , , Return-path: In-Reply-To: <20180129142811.13273-1-lionel.Debieve@st.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org List-Id: linux-crypto.vger.kernel.org From: Lionel Debieve 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 --- drivers/crypto/stm32/stm32-hash.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c index 4ca4a264a833..73cdc3b4dca8 100644 --- a/drivers/crypto/stm32/stm32-hash.c +++ b/drivers/crypto/stm32/stm32-hash.c @@ -1404,18 +1404,19 @@ 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) -- 2.15.1