linux-kernel - [PATCH] mtd: st_spi_fsm: Use devm_platform_ioremap_resource() in stfsm

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Date:   Wed, 18 Sep 2019 14:50:27 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     linux-mtd@...ts.infradead.org,
        Allison Randal <allison@...utok.net>,
        Armijn Hemel <armijn@...ldur.nl>,
        Brian Norris <computersforpeace@...il.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Lee Jones <lee.jones@...aro.org>,
        Marek Vasut <marek.vasut@...il.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vignesh Raghavendra <vigneshr@...com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Himanshu Jha <himanshujha199640@...il.com>
Subject: [PATCH] mtd: st_spi_fsm: Use devm_platform_ioremap_resource() in
 stfsm_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Wed, 18 Sep 2019 14:37:34 +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/mtd/devices/st_spi_fsm.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c
index f4d1667daaf9..5bd1c44ae529 100644
--- a/drivers/mtd/devices/st_spi_fsm.c
+++ b/drivers/mtd/devices/st_spi_fsm.c
@@ -2034,13 +2034,7 @@ static int stfsm_probe(struct platform_device *pdev)

 	platform_set_drvdata(pdev, fsm);

-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "Resource not found\n");
-		return -ENODEV;
-	}
-
-	fsm->base = devm_ioremap_resource(&pdev->dev, res);
+	fsm->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(fsm->base)) {
 		dev_err(&pdev->dev,
 			"Failed to reserve memory region %pR\n", res);
--
2.23.0