[CVE-2009-0029] Convert all system calls to return a long

Convert all system calls to return a long. This should be a NOP since all
converted types should have the same size anyway.
With the exception of sys_exit_group which returned void. But that doesn't
matter since the system call doesn't return.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/kernel/exit.c b/kernel/exit.c
index c7740fa3252c..fac9b040af2c 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1182,9 +1182,11 @@ do_group_exit(int exit_code)
  * wait4()-ing process will get the correct exit code - even if this
  * thread is not the thread group leader.
  */
-asmlinkage void sys_exit_group(int error_code)
+asmlinkage long sys_exit_group(int error_code)
 {
         do_group_exit((error_code & 0xff) << 8);
+        /* NOTREACHED */
+        return 0;
 }
 
 static struct pid *task_pid_type(struct task_struct *task, enum pid_type type)