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authorThierry Reding <thierry.reding@avionic-design.de>2013-01-21 11:09:01 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-22 11:41:56 -0800
commit641d03422a59b1e790b7edabb16bc62da71130c3 (patch)
tree664b32773f331f9d0b60bd0feaae831791c1d3ff /drivers/gpio/gpio-mxs.c
parentc7c9e1c372452688f0ef2af794789bbd00f9fa51 (diff)
downloadop-kernel-dev-641d03422a59b1e790b7edabb16bc62da71130c3.zip
op-kernel-dev-641d03422a59b1e790b7edabb16bc62da71130c3.tar.gz
gpio: Convert to devm_ioremap_resource()
Convert all uses of devm_request_and_ioremap() to the newly introduced devm_ioremap_resource() which provides more consistent error handling. devm_ioremap_resource() provides its own error messages so all explicit error messages can be removed from the failure code paths. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Linus Walleij <linus.walleij@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpio/gpio-mxs.c')
-rw-r--r--drivers/gpio/gpio-mxs.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index fa2a63c..45d97c4 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -20,6 +20,7 @@
* MA 02110-1301, USA.
*/
+#include <linux/err.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
@@ -253,12 +254,14 @@ static int mxs_gpio_probe(struct platform_device *pdev)
parent = of_get_parent(np);
base = of_iomap(parent, 0);
of_node_put(parent);
+ if (!base)
+ return -EADDRNOTAVAIL;
} else {
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- base = devm_request_and_ioremap(&pdev->dev, iores);
+ base = devm_ioremap_resource(&pdev->dev, iores);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
}
- if (!base)
- return -EADDRNOTAVAIL;
}
port->base = base;
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