staging: android: ram_console use kmemdup instead of kmalloc

Replace kmalloc + memcpy will kmemdup in ram_console_late_init
Signed-off-by: NGreg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/android/ram_console.c

@@ -411,15 +411,14 @@ static int __init ram_console_late_init(void)
 	if (ram_console_old_log == NULL)
 		return 0;
 #ifdef CONFIG_ANDROID_RAM_CONSOLE_EARLY_INIT
-	ram_console_old_log = kmalloc(ram_console_old_log_size, GFP_KERNEL);
+	ram_console_old_log = kmemdup(ram_console_old_log_init_buffer,
+					ram_console_old_log_size, GFP_KERNEL);
 	if (ram_console_old_log == NULL) {
 		printk(KERN_ERR
 		       "ram_console: failed to allocate buffer for old log\n");
 		ram_console_old_log_size = 0;
 		return 0;
 	}
-	memcpy(ram_console_old_log,
-	       ram_console_old_log_init_buffer, ram_console_old_log_size);
 #endif
 	entry = create_proc_entry("last_kmsg", S_IFREG | S_IRUGO, NULL);
 	if (!entry) {