linux-kernel - [PATCH 2/4] gpio: pxa: convert to devm

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Message-Id: <1448746665-13422-3-git-send-email-robert.jarzmik@free.fr>
Date:	Sat, 28 Nov 2015 22:37:43 +0100
From:	Robert Jarzmik <robert.jarzmik@...e.fr>
To:	Linus Walleij <linus.walleij@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Haojian Zhuang <haojian.zhuang@...il.com>
Cc:	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
	Daniel Mack <zonque@...il.com>,
	Robert Jarzmik <robert.jarzmik@...e.fr>
Subject: [PATCH 2/4] gpio: pxa: convert to devm_ioremap

Use the device managed ioremap to simplify the probe function.

Signed-off-by: Robert Jarzmik <robert.jarzmik@...e.fr>
---
 drivers/gpio/gpio-pxa.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index de2cfbeccaa1..8558abf98204 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -614,9 +614,8 @@ static int pxa_gpio_probe(struct platform_device *pdev)
 		|| (irq_mux <= 0))
 		return -EINVAL;
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -EINVAL;
-	gpio_reg_base = ioremap(res->start, resource_size(res));
+	gpio_reg_base = devm_ioremap(&pdev->dev, res->start,
+				     resource_size(res));
 	if (!gpio_reg_base)
 		return -EINVAL;
 
@@ -627,13 +626,11 @@ static int pxa_gpio_probe(struct platform_device *pdev)
 	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "Error %ld to get gpio clock\n",
 			PTR_ERR(clk));
-		iounmap(gpio_reg_base);
 		return PTR_ERR(clk);
 	}
 	ret = clk_prepare_enable(clk);
 	if (ret) {
 		clk_put(clk);
-		iounmap(gpio_reg_base);
 		return ret;
 	}
 
-- 
2.1.4

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