LinuxQuestions.org - Kernel Module - Compile Error on 3.9.10

well this is embarrasing...
i have written a simple Kernel module that write "hello world" to the kernel log buffer in its module_init call.

i tried compiling it using the kbuild system,but it failed in a strange manner..

This worked on a 2.6 and 3.0 but is not working in 3.9

The details are as follows.

Kernel Version:3.9.10

Makefile : obj-m := Hello_world.0

Command used:

Code:

make -C /lib/modules/`uname -r`/build M=$PWD modules

The error message obtained is as follows

Code:

make: Entering directory `/home/arun/temp/Linux_Build/linux-3.9.10'

make: *** No rule to make target `Device'.  Stop.

make: Leaving directory `/home/arun/temp/Linux_Build/linux-3.9.10'

i am not able to comprehend this...

Code:

*** No rule to make target `Device'. Stop.

any ideas...
as i am pretty new to the kernel, i am not used to GOOD debugging techniques.

//-----------------------------------------------------------------------//

Code:

#include <linux/module.h>

#include <linux/init.h>





static int my_init(void)

{

        printk(KERN_ALERT "hello world\n");

        return 0;

}





static void my_exit(void)

{

        printk(KERN_ALERT "exit\n");

}





module_init(my_init);

module_exit(my_exit);



MODULE_LICENSE("GPL");

MODULE_AUTHOR("Arun Kumar");

MODULE_DESCRIPTION("Sample Module");