system call returns -1

May 2, 2014

      Hi,

I added a new system call to kernel 2.6.32.61 - I used these commands for
complication :

make oldconfig
make
make modules install

It went ok with few warning messages.

When I tried to test the system call , the function _syscall  return -1,
what that means?

Thanks,
Nada

Nada Saif