In commit e80d6661 "flagday: kill pt_regs argument of do_fork()", the
arguments to do_fork() changed.
The example code in jprobe_example.c was not updated to match, so the
arguments inside the jprobe handler do not match reality.
Fix it by updating the arguments to match do_fork(). While we're at it
use pr_info() for brevity, and print stack_start as well for interest.
Signed-off-by: Michael Ellerman <firstname.lastname@example.org>
Acked-by: Masami Hiramatsu <email@example.com>
Signed-off-by: Jiri Kosina <firstname.lastname@example.org>