Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
To:     Dan Williams <dan.j.williams@intel.com>,
        Vinod Koul <vkoul@kernel.org>,
        Maxime Coquelin <mcoquelin.stm32@gmail.com>,
        Alexandre Torgue <alexandre.torgue@st.com>,
        <dmaengine@vger.kernel.org>,
        <linux-stm32@st-md-mailman.stormreply.com>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>
CC:     Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Subject: [PATCH v2] dmaengine: stm32-mdma: Revert "Add a check on read_u32_array"
Date:   Mon, 25 Mar 2019 17:21:55 +0100
Message-ID: <1553530915-1961-1-git-send-email-pierre-yves.mordret@st.com>
MIME-Version: 1.0
Content-Type: text/plain
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

This reverts commit 906b40b246b0 ("Add a check on read_u32_array")

As stated by bindings "st,ahb-addr-masks" is optional.
The statement inserted by this commit makes this property
mandatory and prevents MDMA to be probed in case property not present.

Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
---
  Version history:
    v2:
       * review commit message
    v1:
       * Initial
---
---
 drivers/dma/stm32-mdma.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c
index 4e0eede..ac0301b 100644
--- a/drivers/dma/stm32-mdma.c
+++ b/drivers/dma/stm32-mdma.c
@@ -1578,11 +1578,9 @@ static int stm32_mdma_probe(struct platform_device *pdev)
 
 	dmadev->nr_channels = nr_channels;
 	dmadev->nr_requests = nr_requests;
-	ret = device_property_read_u32_array(&pdev->dev, "st,ahb-addr-masks",
+	device_property_read_u32_array(&pdev->dev, "st,ahb-addr-masks",
 				       dmadev->ahb_addr_masks,
 				       count);
-	if (ret)
-		return ret;
 	dmadev->nr_ahb_addr_masks = count;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-- 
2.7.4