linux-kernel - [PATCH] dmaengine: owl: Use devm_platform_ioremap_resource() in owl_dma

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <d36b6a6c-2e3d-8d68-6ddc-969a377ca3b2@web.de>
Date:   Sun, 22 Sep 2019 13:30:41 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     dmaengine@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Andreas Färber <afaerber@...e.de>,
        Dan Williams <dan.j.williams@...el.com>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Vinod Koul <vkoul@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] dmaengine: owl: Use devm_platform_ioremap_resource() in
 owl_dma_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 22 Sep 2019 13:23:54 +0200

Simplify this function implementation by using a known wrapper function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/dma/owl-dma.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/dma/owl-dma.c b/drivers/dma/owl-dma.c
index 90bbcef99ef8..023f951189a7 100644
--- a/drivers/dma/owl-dma.c
+++ b/drivers/dma/owl-dma.c
@@ -1045,18 +1045,13 @@ static int owl_dma_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct owl_dma *od;
-	struct resource *res;
 	int ret, i, nr_channels, nr_requests;

 	od = devm_kzalloc(&pdev->dev, sizeof(*od), GFP_KERNEL);
 	if (!od)
 		return -ENOMEM;

-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -EINVAL;
-
-	od->base = devm_ioremap_resource(&pdev->dev, res);
+	od->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(od->base))
 		return PTR_ERR(od->base);

--
2.23.0