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Commit 68cb9478 authored by Oleg Nesterov's avatar Oleg Nesterov Committed by Linus Torvalds
Browse files

ptrace: __ptrace_unlink: use the ptrace_reparented() helper 



Currently __ptrace_unlink() checks list_empty(->ptrace_list) to figure out
whether the child was reparented.  Change the code to use ptrace_reparented()
to make this check more explicit and consistent.

No functional changes.

Signed-off-by: default avatarOleg Nesterov <oleg@tv-sign.ru>
Acked-by: default avatarRoland McGrath <roland@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 53b6f9fb

kernel/ptrace.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -73,7 +73,7 @@ void __ptrace_unlink(struct task_struct *child) 
	BUG_ON(!child->ptrace);

	BUG_ON(!child->ptrace);





	child->ptrace = 0;

	child->ptrace = 0;

	if (!list_empty(&child->ptrace_list)) {

	if (ptrace_reparented(child)) {

		list_del_init(&child->ptrace_list);

		list_del_init(&child->ptrace_list);

		remove_parent(child);

		remove_parent(child);

		child->parent = child->real_parent;

		child->parent = child->real_parent;