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From: Markus Elfring <Markus.Elfring@web.de>
To: linux-serial@vger.kernel.org,
	linux-rpi-kernel@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	bcm-kernel-feedback-list@broadcom.com,
	Eric Anholt <eric@anholt.net>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	Martin Sperl <kernel@martin.sperl.org>,
	Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>,
	Stefan Wahren <wahrenst@gmx.net>,
	Stephen Boyd <swboyd@chromium.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	kernel-janitors@vger.kernel.org,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	Himanshu Jha <himanshujha199640@gmail.com>
Subject: [PATCH] serial: bcm2835: Use devm_platform_ioremap_resource() in bcm2835aux_serial_probe()
Date: Wed, 18 Sep 2019 22:12:40 +0200	[thread overview]
Message-ID: <fcb34c72-89c7-9993-fc0a-ba3a61708bec@web.de> (raw)

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 18 Sep 2019 22:00:14 +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@users.sourceforge.net>
---
 drivers/tty/serial/8250/8250_bcm2835aux.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_bcm2835aux.c b/drivers/tty/serial/8250/8250_bcm2835aux.c
index 8ce700c1a7fc..e2c9d19fc8e9 100644
--- a/drivers/tty/serial/8250/8250_bcm2835aux.c
+++ b/drivers/tty/serial/8250/8250_bcm2835aux.c
@@ -25,7 +25,6 @@ struct bcm2835aux_data {
 static int bcm2835aux_serial_probe(struct platform_device *pdev)
 {
 	struct bcm2835aux_data *data;
-	struct resource *res;
 	int ret;

 	/* allocate the custom structure */
@@ -61,12 +60,7 @@ static int bcm2835aux_serial_probe(struct platform_device *pdev)
 	data->uart.port.irq = ret;

 	/* map the main registers */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "memory resource not found");
-		return -EINVAL;
-	}
-	data->uart.port.membase = devm_ioremap_resource(&pdev->dev, res);
+	data->uart.port.membase = devm_platform_ioremap_resource(pdev, 0);
 	ret = PTR_ERR_OR_ZERO(data->uart.port.membase);
 	if (ret)
 		return ret;
--
2.23.0


             reply	other threads:[~2019-09-18 20:13 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-18 20:12 Markus Elfring [this message]
2019-09-20 17:51 ` [PATCH] serial: bcm2835: Use devm_platform_ioremap_resource() in bcm2835aux_serial_probe() Florian Fainelli

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