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Subject: [PATCH v2] ethernet: axienet: Use devm_platform_ioremap_resource() in
 axienet_probe()
To:     netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        "David S. Miller" <davem@davemloft.net>,
        Michal Simek <michals@xilinx.com>,
        Radhey Shyam Pandey <radheys@xilinx.com>
Cc:     LKML <linux-kernel@vger.kernel.org>,
        kernel-janitors@vger.kernel.org
References: <af65355e-c2f8-9142-4d0b-6903f23a98b2@web.de>
 <CH2PR02MB700047AFFFE08FE5FD563541C78E0@CH2PR02MB7000.namprd02.prod.outlook.com>
From:   Markus Elfring <Markus.Elfring@web.de>
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Date:   Fri, 20 Sep 2019 13:30:35 +0200
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Fri, 20 Sep 2019 13:17:01 +0200

Simplify this function implementation by using the wrapper function
=E2=80=9Cdevm_platform_ioremap_resource=E2=80=9D instead of calling the fu=
nctions
=E2=80=9Cplatform_get_resource=E2=80=9D and =E2=80=9Cdevm_ioremap_resource=
=E2=80=9D directly.

* Thus reduce also a bit of exception handling code here.
* Delete the local variable =E2=80=9Cres=E2=80=9D.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
=2D--

v2:
Further changes were requested by Radhey Shyam Pandey.
https://lore.kernel.org/r/CH2PR02MB700047AFFFE08FE5FD563541C78E0@CH2PR02MB=
7000.namprd02.prod.outlook.com/

* Updates for three modules were split into a separate patch for each driv=
er.
* The commit description was adjusted.


 drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/n=
et/ethernet/xilinx/xilinx_axienet_main.c
index 4fc627fb4d11..92783aaaa0a2 100644
=2D-- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -1787,14 +1787,7 @@ static int axienet_probe(struct platform_device *pd=
ev)
 		of_node_put(np);
 		lp->eth_irq =3D platform_get_irq(pdev, 0);
 	} else {
-		/* Check for these resources directly on the Ethernet node. */
-		struct resource *res =3D platform_get_resource(pdev,
-							     IORESOURCE_MEM, 1);
-		if (!res) {
-			dev_err(&pdev->dev, "unable to get DMA memory resource\n");
-			goto free_netdev;
-		}
-		lp->dma_regs =3D devm_ioremap_resource(&pdev->dev, res);
+		lp->dma_regs =3D devm_platform_ioremap_resource(pdev, 1);
 		lp->rx_irq =3D platform_get_irq(pdev, 1);
 		lp->tx_irq =3D platform_get_irq(pdev, 0);
 		lp->eth_irq =3D platform_get_irq(pdev, 2);
=2D-
2.23.0