driver core: platform_device_add_data(): use kmemdup()

Instead of open-coding it.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 0f7d434..ed156a1 100644 (file)
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -10,6 +10,7 @@
  * information.
  */
 
+#include <linux/string.h>
 #include <linux/platform_device.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -213,14 +214,13 @@ EXPORT_SYMBOL_GPL(platform_device_add_resources);
 int platform_device_add_data(struct platform_device *pdev, const void *data,
                             size_t size)
 {
-       void *d;
+       void *d = kmemdup(data, size, GFP_KERNEL);
 
-       d = kmalloc(size, GFP_KERNEL);
        if (d) {
-               memcpy(d, data, size);
                pdev->dev.platform_data = d;
+               return 0;
        }
-       return d ? 0 : -ENOMEM;
+       return -ENOMEM;
 }
 EXPORT_SYMBOL_GPL(platform_device_add_data);