drivers/rtc: don't check resource with devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Stephen Warren <swarren@nvidia.com>

diff --git a/drivers/rtc/rtc-nuc900.c b/drivers/rtc/rtc-nuc900.c
index f5dfb6e..d592e2f 100644 (file)
--- a/drivers/rtc/rtc-nuc900.c
+++ b/drivers/rtc/rtc-nuc900.c
@@ -234,11 +234,6 @@ static int __init nuc900_rtc_probe(struct platform_device *pdev)
                return -ENOMEM;
        }
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!res) {
-               dev_err(&pdev->dev, "platform_get_resource failed\n");
-               return -ENXIO;
-       }
-
        nuc900_rtc->rtc_reg = devm_ioremap_resource(&pdev->dev, res);
        if (IS_ERR(nuc900_rtc->rtc_reg))
                return PTR_ERR(nuc900_rtc->rtc_reg);

diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index 4e1bdb8..b0ba3fc 100644 (file)
--- a/drivers/rtc/rtc-omap.c
+++ b/drivers/rtc/rtc-omap.c
@@ -347,11 +347,6 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
        }
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!res) {
-               pr_debug("%s: RTC resource data missing\n", pdev->name);
-               return -ENOENT;
-       }
-
        rtc_base = devm_ioremap_resource(&pdev->dev, res);
        if (IS_ERR(rtc_base))
                return PTR_ERR(rtc_base);

diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 14040b2..0b495e8 100644 (file)
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -477,11 +477,6 @@ static int s3c_rtc_probe(struct platform_device *pdev)
        /* get the memory region */
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (res == NULL) {
-               dev_err(&pdev->dev, "failed to get memory region resource\n");
-               return -ENOENT;
-       }
-
        s3c_rtc_base = devm_ioremap_resource(&pdev->dev, res);
        if (IS_ERR(s3c_rtc_base))
                return PTR_ERR(s3c_rtc_base);

diff --git a/drivers/rtc/rtc-tegra.c b/drivers/rtc/rtc-tegra.c
index a34315d..76af92a 100644 (file)
--- a/drivers/rtc/rtc-tegra.c
+++ b/drivers/rtc/rtc-tegra.c
@@ -322,12 +322,6 @@ static int __init tegra_rtc_probe(struct platform_device *pdev)
                return -ENOMEM;
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!res) {
-               dev_err(&pdev->dev,
-                       "Unable to allocate resources for device.\n");
-               return -EBUSY;
-       }
-
        info->rtc_base = devm_ioremap_resource(&pdev->dev, res);
        if (IS_ERR(info->rtc_base))
                return PTR_ERR(info->rtc_base);