linux-kernel - [PATCH v1] mfd: syscon: Switch to use devm_ioremap

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Message-Id: <20200110101510.87311-1-andriy.shevchenko@linux.intel.com>
Date:   Fri, 10 Jan 2020 12:15:10 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Lee Jones <lee.jones@...aro.org>, Arnd Bergmann <arnd@...db.de>,
        linux-kernel@...r.kernel.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1] mfd: syscon: Switch to use devm_ioremap_resource()

Instead of checking resource pointer for being NULL and
report some not very standard error codes in this case,
switch to devm_ioremap_resource() API.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/mfd/syscon.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
index 13626bb2d432..fad961b2e4a5 100644
--- a/drivers/mfd/syscon.c
+++ b/drivers/mfd/syscon.c
@@ -238,12 +238,9 @@ static int syscon_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENOENT;
-
-	base = devm_ioremap(dev, res->start, resource_size(res));
-	if (!base)
-		return -ENOMEM;
+	base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
 	syscon_config.max_register = resource_size(res) - 4;
 	if (pdata)
-- 
2.24.1